53031000 has 128 divisors (see below), whose sum is σ = 180610560. Its totient is φ = 12848000.

The previous prime is 53030981. The next prime is 53031023. The reversal of 53031000 is 13035.

It is a happy number.

It is a super-2 number, since 2×53031000² = 5624573922000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32197 + ... + 33803.

It is an arithmetic number, because the mean of its divisors is an integer number (1411020).

Almost surely, 2^53031000 is an apocalyptic number.

53031000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90305280).

53031000 is an abundant number, since it is smaller than the sum of its proper divisors (127579560).

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

53031000 is a wasteful number, since it uses less digits than its factorization.

53031000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 12.

The square root of 53031000 is about 7282.2386667837. The cubic root of 53031000 is about 375.7017969081.

Adding to 53031000 its reverse (13035), we get a palindrome (53044035).

The spelling of 53031000 in words is "fifty-three million, thirty-one thousand".