72445075 has 36 divisors (see below), whose sum is σ = 98367712. Its totient is φ = 52876800.

The previous prime is 72445057. The next prime is 72445111. The reversal of 72445075 is 57054427.

It is not a de Polignac number, because 72445075 - 2⁹ = 72444563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72445075.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 267190 + ... + 267460.

Almost surely, 2^72445075 is an apocalyptic number.

72445075 is a deficient number, since it is larger than the sum of its proper divisors (25922637).

72445075 is a wasteful number, since it uses less digits than its factorization.

72445075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 72445075 is about 8511.4672648140. The cubic root of 72445075 is about 416.8722203555.

The spelling of 72445075 in words is "seventy-two million, four hundred forty-five thousand, seventy-five".