53400556 has 24 divisors (see below), whose sum is σ = 102945024. Its totient is φ = 24035280.

The previous prime is 53400547. The next prime is 53400563. The reversal of 53400556 is 65500435.

It is a super-2 number, since 2×53400556² = 5703238762218272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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, 1360 + ... + 10423.

It is an arithmetic number, because the mean of its divisors is an integer number (4289376).

Almost surely, 2^53400556 is an apocalyptic number.

It is an amenable number.

53400556 is a deficient number, since it is larger than the sum of its proper divisors (49544468).

53400556 is a wasteful number, since it uses less digits than its factorization.

53400556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11901 (or 11899 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 53400556 is about 7307.5684054273. The cubic root of 53400556 is about 376.5724925328.

It can be divided in two parts, 534005 and 56, that added together give a triangular number (534061 = T₁₀₃₃).

The spelling of 53400556 in words is "fifty-three million, four hundred thousand, five hundred fifty-six".