53515455 has 64 divisors (see below), whose sum is σ = 103735296. Its totient is φ = 23040000.

The previous prime is 53515447. The next prime is 53515471. The reversal of 53515455 is 55451535.

It is not a de Polignac number, because 53515455 - 2³ = 53515447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 133255 + ... + 133655.

It is an arithmetic number, because the mean of its divisors is an integer number (1620864).

Almost surely, 2^53515455 is an apocalyptic number.

53515455 is a deficient number, since it is larger than the sum of its proper divisors (50219841).

53515455 is a wasteful number, since it uses less digits than its factorization.

53515455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488.

The product of its digits is 37500, while the sum is 33.

The square root of 53515455 is about 7315.4258249264. The cubic root of 53515455 is about 376.8423824041.

The spelling of 53515455 in words is "fifty-three million, five hundred fifteen thousand, four hundred fifty-five".