53213251400 has 48 divisors (see below), whose sum is σ = 124016281200. Its totient is φ = 21234466880.

The previous prime is 53213251397. The next prime is 53213251409. The reversal of 53213251400 is 415231235.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 53213251400.

It is not an unprimeable number, because it can be changed into a prime (53213251409) 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, 233702 + ... + 401301.

It is an arithmetic number, because the mean of its divisors is an integer number (2583672525).

Almost surely, 2^53213251400 is an apocalyptic number.

53213251400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53213251400 is an abundant number, since it is smaller than the sum of its proper divisors (70803029800).

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

53213251400 is a wasteful number, since it uses less digits than its factorization.

53213251400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635438 (or 635429 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 53213251400 its reverse (415231235), we get a palindrome (53628482635).

The spelling of 53213251400 in words is "fifty-three billion, two hundred thirteen million, two hundred fifty-one thousand, four hundred".