531402455156 has 24 divisors (see below), whose sum is σ = 971146014720. Its totient is φ = 253950234912.

The previous prime is 531402455123. The next prime is 531402455191. The reversal of 531402455156 is 651554204135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2140391 + ... + 2375726.

It is an arithmetic number, because the mean of its divisors is an integer number (40464417280).

Almost surely, 2^531402455156 is an apocalyptic number.

It is an amenable number.

531402455156 is a deficient number, since it is larger than the sum of its proper divisors (439743559564).

531402455156 is a wasteful number, since it uses less digits than its factorization.

531402455156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517423 (or 4517421 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 531402455156 in words is "five hundred thirty-one billion, four hundred two million, four hundred fifty-five thousand, one hundred fifty-six".