531252400 has 60 divisors (see below), whose sum is σ = 1458674992. Its totient is φ = 182142720.

The previous prime is 531252389. The next prime is 531252409. The reversal of 531252400 is 4252135.

It is a super-2 number, since 2×531252400² = 564458225011520000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531252409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92067 + ... + 97666.

Almost surely, 2^531252400 is an apocalyptic number.

531252400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

531252400 is an abundant number, since it is smaller than the sum of its proper divisors (927422592).

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

531252400 is a wasteful number, since it uses less digits than its factorization.

531252400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189758 (or 189747 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 531252400 is about 23048.9132064833. The cubic root of 531252400 is about 809.9041699361.

The spelling of 531252400 in words is "five hundred thirty-one million, two hundred fifty-two thousand, four hundred".