52158456 has 96 divisors (see below), whose sum is σ = 165865440. Its totient is φ = 14494464.

The previous prime is 52158451. The next prime is 52158473. The reversal of 52158456 is 65485125.

52158456 is a `hidden beast` number, since 5 + 21 + 584 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 52158456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52158451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17250 + ... + 20046.

It is an arithmetic number, because the mean of its divisors is an integer number (1727765).

Almost surely, 2^52158456 is an apocalyptic number.

52158456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52158456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82932720).

52158456 is an abundant number, since it is smaller than the sum of its proper divisors (113706984).

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

52158456 is a wasteful number, since it uses less digits than its factorization.

52158456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853 (or 2846 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 52158456 is about 7222.0811405024. The cubic root of 52158456 is about 373.6298586642.

The spelling of 52158456 in words is "fifty-two million, one hundred fifty-eight thousand, four hundred fifty-six".