72022455 has 48 divisors (see below), whose sum is σ = 136491264. Its totient is φ = 34974720.

The previous prime is 72022439. The next prime is 72022481. The reversal of 72022455 is 55422027.

72022455 is a `hidden beast` number, since 7 + 202 + 2 + 455 = 666.

It is not a de Polignac number, because 72022455 - 2⁴ = 72022439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22197 + ... + 25233.

It is an arithmetic number, because the mean of its divisors is an integer number (2843568).

Almost surely, 2^72022455 is an apocalyptic number.

72022455 is a deficient number, since it is larger than the sum of its proper divisors (64468809).

72022455 is a wasteful number, since it uses less digits than its factorization.

72022455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096 (or 3093 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 72022455 is about 8486.6044446528. The cubic root of 72022455 is about 416.0600085246.

The spelling of 72022455 in words is "seventy-two million, twenty-two thousand, four hundred fifty-five".