52615332 has 288 divisors, whose sum is σ = 185902080. Its totient is φ = 12597120.

The previous prime is 52615307. The next prime is 52615333. The reversal of 52615332 is 23351625.

It is a super-2 number, since 2×52615332² = 5536746322940448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 52615296 and 52615305.

It is not an unprimeable number, because it can be changed into a prime (52615333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1422018 + ... + 1422054.

Almost surely, 2^52615332 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 52615332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92951040).

52615332 is an abundant number, since it is smaller than the sum of its proper divisors (133286748).

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

52615332 is a wasteful number, since it uses less digits than its factorization.

52615332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 79 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 52615332 is about 7253.6426710998. The cubic root of 52615332 is about 374.7176114045.

Adding to 52615332 its reverse (23351625), we get a palindrome (75966957).

The spelling of 52615332 in words is "fifty-two million, six hundred fifteen thousand, three hundred thirty-two".