70512532 has 36 divisors (see below), whose sum is σ = 132197884. Its totient is φ = 32901120.

The previous prime is 70512521. The next prime is 70512539. The reversal of 70512532 is 23521507.

It can be written as a sum of positive squares in 6 ways, for example, as 1887876 + 68624656 = 1374^2 + 8284^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70512497 and 70512506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70512539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209068 + ... + 209404.

Almost surely, 2^70512532 is an apocalyptic number.

It is an amenable number.

70512532 is a deficient number, since it is larger than the sum of its proper divisors (61685352).

70512532 is a wasteful number, since it uses less digits than its factorization.

70512532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 70512532 is about 8397.1740484523. The cubic root of 70512532 is about 413.1319376709.

Subtracting from 70512532 its reverse (23521507), we obtain a square (46991025 = 6855²).

The spelling of 70512532 in words is "seventy million, five hundred twelve thousand, five hundred thirty-two".