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25214975 = 524572207
BaseRepresentation
bin110000000101…
…1111111111111
31202110001102222
41200023333333
522423334400
62300235555
7424216022
oct140137777
952401388
1025214975
1113262425
12853bbbb
1352bb006
1434c51b9
152331185
hex180bfff

25214975 has 12 divisors (see below), whose sum is σ = 31349184. Its totient is φ = 20118720.

The previous prime is 25214971. The next prime is 25214989. The reversal of 25214975 is 57941252.

It is not a de Polignac number, because 25214975 - 22 = 25214971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25214971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10322 + ... + 12528.

It is an arithmetic number, because the mean of its divisors is an integer number (2612432).

Almost surely, 225214975 is an apocalyptic number.

25214975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25214975 is a deficient number, since it is larger than the sum of its proper divisors (6134209).

25214975 is a wasteful number, since it uses less digits than its factorization.

25214975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674 (or 2669 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 25214975 is about 5021.4514833861. The cubic root of 25214975 is about 293.2375038494.

The spelling of 25214975 in words is "twenty-five million, two hundred fourteen thousand, nine hundred seventy-five".

Divisors: 1 5 25 457 2207 2285 11035 11425 55175 1008599 5042995 25214975