53566120 has 16 divisors (see below), whose sum is σ = 120523860. Its totient is φ = 21426432.

The previous prime is 53566067. The next prime is 53566129. The reversal of 53566120 is 2166535.

It can be written as a sum of positive squares in 2 ways, for example, as 53553124 + 12996 = 7318^2 + 114^2 .

It is not an unprimeable number, because it can be changed into a prime (53566129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669537 + ... + 669616.

Almost surely, 2^53566120 is an apocalyptic number.

It is an amenable number.

53566120 is an abundant number, since it is smaller than the sum of its proper divisors (66957740).

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

53566120 is a wasteful number, since it uses less digits than its factorization.

53566120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339164 (or 1339160 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 53566120 is about 7318.8878936625. The cubic root of 53566120 is about 376.9612682924.

It can be divided in two parts, 5356 and 6120, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 53566120 in words is "fifty-three million, five hundred sixty-six thousand, one hundred twenty".