50871657 has 8 divisors (see below), whose sum is σ = 67920160. Its totient is φ = 33868800.

The previous prime is 50871649. The next prime is 50871671. The reversal of 50871657 is 75617805.

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

It is not a de Polignac number, because 50871657 - 2³ = 50871649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50871677) 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, 8719 + ... + 13332.

It is an arithmetic number, because the mean of its divisors is an integer number (8490020).

Almost surely, 2^50871657 is an apocalyptic number.

It is an amenable number.

50871657 is a deficient number, since it is larger than the sum of its proper divisors (17048503).

50871657 is a wasteful number, since it uses less digits than its factorization.

50871657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22823.

The product of its (nonzero) digits is 58800, while the sum is 39.

The square root of 50871657 is about 7132.4369608150. The cubic root of 50871657 is about 370.5316365284.

The spelling of 50871657 in words is "fifty million, eight hundred seventy-one thousand, six hundred fifty-seven".