55653156 has 120 divisors (see below), whose sum is σ = 159703544. Its totient is φ = 16796160.

The previous prime is 55653151. The next prime is 55653163. The reversal of 55653156 is 65135655.

55653156 is a `hidden beast` number, since 556 + 53 + 1 + 56 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 656100 + 54997056 = 810^2 + 7416^2 .

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 55653156.

It is not an unprimeable number, because it can be changed into a prime (55653151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 307386 + ... + 307566.

Almost surely, 2^55653156 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 55653156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79851772).

55653156 is an abundant number, since it is smaller than the sum of its proper divisors (104050388).

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

55653156 is a wasteful number, since it uses less digits than its factorization.

55653156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 272 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

The square root of 55653156 is about 7460.1042888153. The cubic root of 55653156 is about 381.7947326972.

It can be divided in two parts, 55653 and 156, that multiplied together give a palindrome (8681868).

The spelling of 55653156 in words is "fifty-five million, six hundred fifty-three thousand, one hundred fifty-six".