523640031952 has 30 divisors (see below), whose sum is σ = 1042007937494. Its totient is φ = 254735233920.

The previous prime is 523640031919. The next prime is 523640031997. The reversal of 523640031952 is 259130046325.

It can be written as a sum of positive squares in 3 ways, for example, as 401925568576 + 121714463376 = 633976^2 + 348876^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17591802 + ... + 17621542.

Almost surely, 2^523640031952 is an apocalyptic number.

It is an amenable number.

523640031952 is a deficient number, since it is larger than the sum of its proper divisors (518367905542).

523640031952 is an frugal number, since it uses more digits than its factorization.

523640031952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59527 (or 29780 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 523640031952 in words is "five hundred twenty-three billion, six hundred forty million, thirty-one thousand, nine hundred fifty-two".