71425525 has 12 divisors (see below), whose sum is σ = 88748164. Its totient is φ = 57024000.

The previous prime is 71425513. The next prime is 71425547. The reversal of 71425525 is 52552417.

It can be written as a sum of positive squares in 6 ways, for example, as 10850436 + 60575089 = 3294^2 + 7783^2 .

It is not a de Polignac number, because 71425525 - 2⁵ = 71425493 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10885 + ... + 16165.

Almost surely, 2^71425525 is an apocalyptic number.

It is an amenable number.

71425525 is a deficient number, since it is larger than the sum of its proper divisors (17322639).

71425525 is a wasteful number, since it uses less digits than its factorization.

71425525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5832 (or 5827 counting only the distinct ones).

The product of its digits is 14000, while the sum is 31.

The square root of 71425525 is about 8451.3623162186. The cubic root of 71425525 is about 414.9073679157.

The spelling of 71425525 in words is "seventy-one million, four hundred twenty-five thousand, five hundred twenty-five".