53181468 has 24 divisors (see below), whose sum is σ = 137878160. Its totient is φ = 17727120.

The previous prime is 53181413. The next prime is 53181473. The reversal of 53181468 is 86418135.

53181468 is a `hidden beast` number, since 531 + 81 + 46 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246103 + ... + 246318.

Almost surely, 2^53181468 is an apocalyptic number.

It is an amenable number.

53181468 is an abundant number, since it is smaller than the sum of its proper divisors (84696692).

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

53181468 is a wasteful number, since it uses less digits than its factorization.

53181468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492434 (or 492426 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 53181468 is about 7292.5625125877. The cubic root of 53181468 is about 376.0567950271.

It can be divided in two parts, 5318 and 1468, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 53181468 in words is "fifty-three million, one hundred eighty-one thousand, four hundred sixty-eight".