531400515225 has 48 divisors (see below), whose sum is σ = 880843622400. Its totient is φ = 282685101120.

The previous prime is 531400515223. The next prime is 531400515281. The reversal of 531400515225 is 522515004135.

It is not a de Polignac number, because 531400515225 - 2¹ = 531400515223 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (531400515223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49551714 + ... + 49562436.

It is an arithmetic number, because the mean of its divisors is an integer number (18350908800).

Almost surely, 2^531400515225 is an apocalyptic number.

It is an amenable number.

531400515225 is a deficient number, since it is larger than the sum of its proper divisors (349443107175).

531400515225 is a wasteful number, since it uses less digits than its factorization.

531400515225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12374 (or 12369 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 531400515225 in words is "five hundred thirty-one billion, four hundred million, five hundred fifteen thousand, two hundred twenty-five".