72657051 has 8 divisors (see below), whose sum is σ = 97036560. Its totient is φ = 48357792.

The previous prime is 72657047. The next prime is 72657131. The reversal of 72657051 is 15075627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72657051 - 2² = 72657047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72657001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17916 + ... + 21593.

It is an arithmetic number, because the mean of its divisors is an integer number (12129570).

Almost surely, 2^72657051 is an apocalyptic number.

72657051 is a deficient number, since it is larger than the sum of its proper divisors (24379509).

72657051 is a wasteful number, since it uses less digits than its factorization.

72657051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40125.

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 72657051 is about 8523.9105462223. The cubic root of 72657051 is about 417.2784170856.

The spelling of 72657051 in words is "seventy-two million, six hundred fifty-seven thousand, fifty-one".