52618572 has 90 divisors (see below), whose sum is σ = 144264428. Its totient is φ = 16722288.

The previous prime is 52618571. The next prime is 52618583. The reversal of 52618572 is 27581625.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (52618571) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 171243 + ... + 171549.

Almost surely, 2^52618572 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 52618572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72132214).

52618572 is an abundant number, since it is smaller than the sum of its proper divisors (91645856).

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

52618572 is a wasteful number, since it uses less digits than its factorization.

52618572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 335 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 52618572 is about 7253.8660037252. The cubic root of 52618572 is about 374.7253028264.

The spelling of 52618572 in words is "fifty-two million, six hundred eighteen thousand, five hundred seventy-two".