52620072 has 32 divisors (see below), whose sum is σ = 134352000. Its totient is φ = 17166464.

The previous prime is 52620059. The next prime is 52620103. The reversal of 52620072 is 27002625.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22197 + ... + 24452.

It is an arithmetic number, because the mean of its divisors is an integer number (4198500).

Almost surely, 2^52620072 is an apocalyptic number.

It is an amenable number.

52620072 is an abundant number, since it is smaller than the sum of its proper divisors (81731928).

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

52620072 is a wasteful number, since it uses less digits than its factorization.

52620072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46705 (or 46701 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 52620072 is about 7253.9693961306. The cubic root of 52620072 is about 374.7288635629.

Adding to 52620072 its reverse (27002625), we get a palindrome (79622697).

The spelling of 52620072 in words is "fifty-two million, six hundred twenty thousand, seventy-two".