72757825 has 12 divisors (see below), whose sum is σ = 103108480. Its totient is φ = 49890960.

The previous prime is 72757819. The next prime is 72757829. The reversal of 72757825 is 52875727.

It is not a de Polignac number, because 72757825 - 2⁷ = 72757697 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (72757829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207705 + ... + 208054.

Almost surely, 2^72757825 is an apocalyptic number.

It is an amenable number.

72757825 is a deficient number, since it is larger than the sum of its proper divisors (30350655).

72757825 is a wasteful number, since it uses less digits than its factorization.

72757825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415776 (or 415771 counting only the distinct ones).

The product of its digits is 274400, while the sum is 43.

The square root of 72757825 is about 8529.8197519057. The cubic root of 72757825 is about 417.4712471384.

The spelling of 72757825 in words is "seventy-two million, seven hundred fifty-seven thousand, eight hundred twenty-five".