71572425 has 24 divisors (see below), whose sum is σ = 121090464. Its totient is φ = 37282560.

The previous prime is 71572381. The next prime is 71572427. The reversal of 71572425 is 52427517.

It is not a de Polignac number, because 71572425 - 2⁸ = 71572169 is a prime.

It is a super-2 number, since 2×71572425² = 10245224040761250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71572427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7872 + ... + 14321.

It is an arithmetic number, because the mean of its divisors is an integer number (5045436).

Almost surely, 2^71572425 is an apocalyptic number.

71572425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

71572425 is a deficient number, since it is larger than the sum of its proper divisors (49518039).

71572425 is a wasteful number, since it uses less digits than its factorization.

71572425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22249 (or 22244 counting only the distinct ones).

The product of its digits is 19600, while the sum is 33.

The square root of 71572425 is about 8460.0487587247. The cubic root of 71572425 is about 415.1916180959.

The spelling of 71572425 in words is "seventy-one million, five hundred seventy-two thousand, four hundred twenty-five".