54256520 has 64 divisors (see below), whose sum is σ = 131148720. Its totient is φ = 20127744.

The previous prime is 54256513. The next prime is 54256529. The reversal of 54256520 is 2565245.

It can be written as a sum of positive squares in 8 ways, for example, as 48135844 + 6120676 = 6938^2 + 2474^2 .

It is not an unprimeable number, because it can be changed into a prime (54256529) 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, 49094 + ... + 50186.

Almost surely, 2^54256520 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 54256520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65574360).

54256520 is an abundant number, since it is smaller than the sum of its proper divisors (76892200).

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

54256520 is a wasteful number, since it uses less digits than its factorization.

54256520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 54256520 is about 7365.9025244704. The cubic root of 54256520 is about 378.5738789107.

The spelling of 54256520 in words is "fifty-four million, two hundred fifty-six thousand, five hundred twenty".