72253475 has 24 divisors (see below), whose sum is σ = 103231488. Its totient is φ = 49140000.

The previous prime is 72253427. The next prime is 72253477. The reversal of 72253475 is 57435227.

It is not a de Polignac number, because 72253475 - 2²² = 68059171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72253477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20600 + ... + 23850.

It is an arithmetic number, because the mean of its divisors is an integer number (4301312).

Almost surely, 2^72253475 is an apocalyptic number.

72253475 is a deficient number, since it is larger than the sum of its proper divisors (30978013).

72253475 is a wasteful number, since it uses less digits than its factorization.

72253475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395 (or 3390 counting only the distinct ones).

The product of its digits is 58800, while the sum is 35.

The square root of 72253475 is about 8500.2044093069. The cubic root of 72253475 is about 416.5043865824.

The spelling of 72253475 in words is "seventy-two million, two hundred fifty-three thousand, four hundred seventy-five".