57172711 has 8 divisors (see below), whose sum is σ = 60019200. Its totient is φ = 54388920.

The previous prime is 57172693. The next prime is 57172721. The reversal of 57172711 is 11727175.

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

It is a cyclic number.

It is not a de Polignac number, because 57172711 - 2¹⁷ = 57041639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57172721) 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, 13801 + ... + 17458.

It is an arithmetic number, because the mean of its divisors is an integer number (7502400).

Almost surely, 2^57172711 is an apocalyptic number.

57172711 is the 3382-nd centered decagonal number.

57172711 is a deficient number, since it is larger than the sum of its proper divisors (2846489).

57172711 is a wasteful number, since it uses less digits than its factorization.

57172711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31349.

The product of its digits is 3430, while the sum is 31.

The square root of 57172711 is about 7561.2638493839. The cubic root of 57172711 is about 385.2384220619.

Adding to 57172711 its reverse (11727175), we get a palindrome (68899886).

The spelling of 57172711 in words is "fifty-seven million, one hundred seventy-two thousand, seven hundred eleven".