53365491 has 12 divisors (see below), whose sum is σ = 77254632. Its totient is φ = 35498016.

The previous prime is 53365489. The next prime is 53365511. The reversal of 53365491 is 19456335.

It is not a de Polignac number, because 53365491 - 2¹ = 53365489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53365391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2146 + ... + 10551.

It is an arithmetic number, because the mean of its divisors is an integer number (6437886).

Almost surely, 2^53365491 is an apocalyptic number.

53365491 is a deficient number, since it is larger than the sum of its proper divisors (23889141).

53365491 is a wasteful number, since it uses less digits than its factorization.

53365491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13170 (or 13167 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 53365491 is about 7305.1687865511. The cubic root of 53365491 is about 376.4900501595.

The spelling of 53365491 in words is "fifty-three million, three hundred sixty-five thousand, four hundred ninety-one".