72522205 has 24 divisors (see below), whose sum is σ = 101647872. Its totient is φ = 49671888.

The previous prime is 72522181. The next prime is 72522211. The reversal of 72522205 is 50222527.

It is not a de Polignac number, because 72522205 - 2¹¹ = 72520157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72522205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83604 + ... + 84466.

It is an arithmetic number, because the mean of its divisors is an integer number (4235328).

Almost surely, 2^72522205 is an apocalyptic number.

It is an amenable number.

72522205 is a deficient number, since it is larger than the sum of its proper divisors (29125667).

72522205 is an frugal number, since it uses more digits than its factorization.

72522205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 875 counting only the distinct ones).

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

The square root of 72522205 is about 8515.9970056359. The cubic root of 72522205 is about 417.0201114772.

It can be divided in two parts, 72522 and 205, that added together give a palindrome (72727).

The spelling of 72522205 in words is "seventy-two million, five hundred twenty-two thousand, two hundred five".