71552464 has 20 divisors (see below), whose sum is σ = 143105920. Its totient is φ = 34621920.

The previous prime is 71552447. The next prime is 71552477. The reversal of 71552464 is 46425517.

71552464 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71634 + ... + 72625.

It is an arithmetic number, because the mean of its divisors is an integer number (7155296).

Almost surely, 2^71552464 is an apocalyptic number.

It is an amenable number.

71552464 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71552464 is a wasteful number, since it uses less digits than its factorization.

71552464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144298 (or 144292 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 71552464 is about 8458.8689551263. The cubic root of 71552464 is about 415.1530165886.

The spelling of 71552464 in words is "seventy-one million, five hundred fifty-two thousand, four hundred sixty-four".