53155755 has 24 divisors (see below), whose sum is σ = 93702960. Its totient is φ = 27867840.

The previous prime is 53155741. The next prime is 53155757. The reversal of 53155755 is 55755135.

53155755 is a `hidden beast` number, since 53 + 1 + 557 + 55 = 666.

It is not a de Polignac number, because 53155755 - 2¹⁸ = 52893611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53155757) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7356 + ... + 12665.

It is an arithmetic number, because the mean of its divisors is an integer number (3904290).

Almost surely, 2^53155755 is an apocalyptic number.

53155755 is a deficient number, since it is larger than the sum of its proper divisors (40547205).

53155755 is a wasteful number, since it uses less digits than its factorization.

53155755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20091 (or 20088 counting only the distinct ones).

The product of its digits is 65625, while the sum is 36.

The square root of 53155755 is about 7290.7993388928. The cubic root of 53155755 is about 375.9961780017.

The spelling of 53155755 in words is "fifty-three million, one hundred fifty-five thousand, seven hundred fifty-five".