51337857 has 8 divisors (see below), whose sum is σ = 68695200. Its totient is φ = 34102880.

The previous prime is 51337837. The next prime is 51337861. The reversal of 51337857 is 75873315.

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 51337857 - 2¹⁰ = 51336833 is a prime.

It is a super-2 number, since 2×51337857² = 5271151122704898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51337837) 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, 29607 + ... + 31292.

It is an arithmetic number, because the mean of its divisors is an integer number (8586900).

Almost surely, 2^51337857 is an apocalyptic number.

It is an amenable number.

51337857 is a deficient number, since it is larger than the sum of its proper divisors (17357343).

51337857 is a wasteful number, since it uses less digits than its factorization.

51337857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61183.

The product of its digits is 88200, while the sum is 39.

The square root of 51337857 is about 7165.0441031441. The cubic root of 51337857 is about 371.6600765207.

The spelling of 51337857 in words is "fifty-one million, three hundred thirty-seven thousand, eight hundred fifty-seven".