531245501420 has 12 divisors (see below), whose sum is σ = 1115615553024. Its totient is φ = 212498200560.

The previous prime is 531245501389. The next prime is 531245501441. The reversal of 531245501420 is 24105542135.

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, 13281137516 + ... + 13281137555.

It is an arithmetic number, because the mean of its divisors is an integer number (92967962752).

Almost surely, 2^531245501420 is an apocalyptic number.

It is an amenable number.

531245501420 is an abundant number, since it is smaller than the sum of its proper divisors (584370051604).

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

531245501420 is a wasteful number, since it uses less digits than its factorization.

531245501420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26562275080 (or 26562275078 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 531245501420 in words is "five hundred thirty-one billion, two hundred forty-five million, five hundred one thousand, four hundred twenty".