25720414 has 16 divisors (see below), whose sum is σ = 40711680. Its totient is φ = 12153240.

The previous prime is 25720399. The next prime is 25720427. The reversal of 25720414 is 41402752.

It is a super-3 number, since 3×25720414³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25459 + ... + 26449.

It is an arithmetic number, because the mean of its divisors is an integer number (2544480).

Almost surely, 2^25720414 is an apocalyptic number.

25720414 is a deficient number, since it is larger than the sum of its proper divisors (14991266).

25720414 is a wasteful number, since it uses less digits than its factorization.

25720414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 25720414 is about 5071.5297494937. The cubic root of 25720414 is about 295.1838899437.

The spelling of 25720414 in words is "twenty-five million, seven hundred twenty thousand, four hundred fourteen".