53455213 has 16 divisors (see below), whose sum is σ = 62375040. Its totient is φ = 44865216.

The previous prime is 53455211. The next prime is 53455231. The reversal of 53455213 is 31255435.

It is a cyclic number.

It is not a de Polignac number, because 53455213 - 2¹ = 53455211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53455211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137223 + ... + 137611.

It is an arithmetic number, because the mean of its divisors is an integer number (3898440).

Almost surely, 2^53455213 is an apocalyptic number.

It is an amenable number.

53455213 is a deficient number, since it is larger than the sum of its proper divisors (8919827).

53455213 is a wasteful number, since it uses less digits than its factorization.

53455213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756.

The product of its digits is 9000, while the sum is 28.

The square root of 53455213 is about 7311.3072018621. The cubic root of 53455213 is about 376.7009263049.

The spelling of 53455213 in words is "fifty-three million, four hundred fifty-five thousand, two hundred thirteen".