72025474 has 4 divisors (see below), whose sum is σ = 108038214. Its totient is φ = 36012736.

The previous prime is 72025441. The next prime is 72025517. The reversal of 72025474 is 47452027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47452027 = 7 ⋅6778861.

It can be written as a sum of positive squares in only one way, i.e., 57532225 + 14493249 = 7585^2 + 3807^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18006367 + ... + 18006370.

Almost surely, 2^72025474 is an apocalyptic number.

72025474 is a deficient number, since it is larger than the sum of its proper divisors (36012740).

72025474 is a wasteful number, since it uses less digits than its factorization.

72025474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36012739.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 72025474 is about 8486.7823113357. The cubic root of 72025474 is about 416.0658218394.

The spelling of 72025474 in words is "seventy-two million, twenty-five thousand, four hundred seventy-four".