53870553 has 24 divisors (see below), whose sum is σ = 85250880. Its totient is φ = 32508960.

The previous prime is 53870549. The next prime is 53870561. The reversal of 53870553 is 35507835.

53870553 is a `hidden beast` number, since 5 + 38 + 70 + 553 = 666.

It is not a de Polignac number, because 53870553 - 2² = 53870549 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53870533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25003 + ... + 27071.

It is an arithmetic number, because the mean of its divisors is an integer number (3552120).

Almost surely, 2^53870553 is an apocalyptic number.

It is an amenable number.

53870553 is a deficient number, since it is larger than the sum of its proper divisors (31380327).

53870553 is a wasteful number, since it uses less digits than its factorization.

53870553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349 (or 2346 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 53870553 is about 7339.6561908580. The cubic root of 53870553 is about 377.6740492382.

The spelling of 53870553 in words is "fifty-three million, eight hundred seventy thousand, five hundred fifty-three".