531132525 has 144 divisors (see below), whose sum is σ = 1227004800. Its totient is φ = 220492800.

The previous prime is 531132493. The next prime is 531132541. The reversal of 531132525 is 525231135.

It is a happy number.

531132525 is a `hidden beast` number, since 5 + 3 + 1 + 132 + 525 = 666.

It is not a de Polignac number, because 531132525 - 2⁵ = 531132493 is a prime.

It is a super-2 number, since 2×531132525² = 564203518225751250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 571261 + ... + 572189.

Almost surely, 2^531132525 is an apocalyptic number.

531132525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

531132525 is an abundant number, since it is smaller than the sum of its proper divisors (695872275).

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

531132525 is a wasteful number, since it uses less digits than its factorization.

531132525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 955 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 531132525 is about 23046.3126117824. The cubic root of 531132525 is about 809.8432481309.

The spelling of 531132525 in words is "five hundred thirty-one million, one hundred thirty-two thousand, five hundred twenty-five".