53455864 has 120 divisors (see below), whose sum is σ = 134111880. Its totient is φ = 19921440.

The previous prime is 53455819. The next prime is 53455879. The reversal of 53455864 is 46855435.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2324157 + ... + 2324179.

It is an arithmetic number, because the mean of its divisors is an integer number (1117599).

Almost surely, 2^53455864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53455864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67055940).

53455864 is an abundant number, since it is smaller than the sum of its proper divisors (80656016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53455864 is a wasteful number, since it uses less digits than its factorization.

53455864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 43 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The square root of 53455864 is about 7311.3517218090. The cubic root of 53455864 is about 376.7024555060.

The spelling of 53455864 in words is "fifty-three million, four hundred fifty-five thousand, eight hundred sixty-four".