72552022 has 16 divisors (see below), whose sum is σ = 116953200. Its totient is φ = 33631488.

The previous prime is 72552019. The next prime is 72552061. The reversal of 72552022 is 22025527.

It is a congruent number.

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, 13647 + ... + 18202.

It is an arithmetic number, because the mean of its divisors is an integer number (7309575).

Almost surely, 2^72552022 is an apocalyptic number.

72552022 is a deficient number, since it is larger than the sum of its proper divisors (44401178).

72552022 is a wasteful number, since it uses less digits than its factorization.

72552022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31935.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 72552022 is about 8517.7474721901. The cubic root of 72552022 is about 417.0772552856.

Adding to 72552022 its reverse (22025527), we get a palindrome (94577549).

The spelling of 72552022 in words is "seventy-two million, five hundred fifty-two thousand, twenty-two".