52072530 has 32 divisors (see below), whose sum is σ = 132326784. Its totient is φ = 13069056.

The previous prime is 52072523. The next prime is 52072541. The reversal of 52072530 is 3527025.

It is a self number, because there is not a number n which added to its sum of digits gives 52072530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50542 + ... + 51561.

It is an arithmetic number, because the mean of its divisors is an integer number (4135212).

Almost surely, 2^52072530 is an apocalyptic number.

52072530 is an abundant number, since it is smaller than the sum of its proper divisors (80254254).

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

52072530 is a wasteful number, since it uses less digits than its factorization.

52072530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102130.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 52072530 is about 7216.1298491643. The cubic root of 52072530 is about 373.4245729027.

Adding to 52072530 its reverse (3527025), we get a palindrome (55599555).

The spelling of 52072530 in words is "fifty-two million, seventy-two thousand, five hundred thirty".