531664260 has 48 divisors (see below), whose sum is σ = 1536686592. Its totient is φ = 137203200.

The previous prime is 531664249. The next prime is 531664313. The reversal of 531664260 is 62466135.

It is a super-2 number, since 2×531664260² = 565333770722695200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141061 + ... + 144780.

It is an arithmetic number, because the mean of its divisors is an integer number (32014304).

Almost surely, 2^531664260 is an apocalyptic number.

It is an amenable number.

531664260 is an abundant number, since it is smaller than the sum of its proper divisors (1005022332).

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

531664260 is a wasteful number, since it uses less digits than its factorization.

531664260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285884 (or 285882 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 531664260 is about 23057.8459531674. The cubic root of 531664260 is about 810.1134119510.

The spelling of 531664260 in words is "five hundred thirty-one million, six hundred sixty-four thousand, two hundred sixty".