72577057 has 8 divisors (see below), whose sum is σ = 83270016. Its totient is φ = 61965312.

The previous prime is 72577051. The next prime is 72577073. The reversal of 72577057 is 75077527.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72577057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72577051) 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, 18373 + ... + 21970.

It is an arithmetic number, because the mean of its divisors is an integer number (10408752).

Almost surely, 2^72577057 is an apocalyptic number.

It is an amenable number.

72577057 is a deficient number, since it is larger than the sum of its proper divisors (10692959).

72577057 is a wasteful number, since it uses less digits than its factorization.

72577057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40607.

The product of its (nonzero) digits is 120050, while the sum is 40.

The square root of 72577057 is about 8519.2169241075. The cubic root of 72577057 is about 417.1252223766.

The spelling of 72577057 in words is "seventy-two million, five hundred seventy-seven thousand, fifty-seven".