53606556 has 96 divisors (see below), whose sum is σ = 144435200. Its totient is φ = 17184960.

The previous prime is 53606549. The next prime is 53606561. The reversal of 53606556 is 65560635.

It is a happy number.

It is a super-2 number, since 2×53606556² = 5747325692362272, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 53606556.

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, 520401 + ... + 520503.

Almost surely, 2^53606556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53606556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72217600).

53606556 is an abundant number, since it is smaller than the sum of its proper divisors (90828644).

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

53606556 is a wasteful number, since it uses less digits than its factorization.

53606556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 53606556 is about 7321.6498140788. The cubic root of 53606556 is about 377.0560979593.

The spelling of 53606556 in words is "fifty-three million, six hundred six thousand, five hundred fifty-six".