70561528 has 16 divisors (see below), whose sum is σ = 132448680. Its totient is φ = 35241888.

The previous prime is 70561501. The next prime is 70561613. The reversal of 70561528 is 82516507.

It is a junction number, because it is equal to n+sod(n) for n = 70561493 and 70561502.

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, 3751 + ... + 12457.

Almost surely, 2^70561528 is an apocalyptic number.

It is an amenable number.

70561528 is a deficient number, since it is larger than the sum of its proper divisors (61887152).

70561528 is a wasteful number, since it uses less digits than its factorization.

70561528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9726 (or 9722 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 70561528 is about 8400.0909518886. The cubic root of 70561528 is about 413.2276044754.

The spelling of 70561528 in words is "seventy million, five hundred sixty-one thousand, five hundred twenty-eight".