50438686 has 4 divisors (see below), whose sum is σ = 75658032. Its totient is φ = 25219342.

The previous prime is 50438629. The next prime is 50438737. The reversal of 50438686 is 68683405.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×50438686² = 5088122090813192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12609670 + ... + 12609673.

It is an arithmetic number, because the mean of its divisors is an integer number (18914508).

Almost surely, 2^50438686 is an apocalyptic number.

50438686 is a deficient number, since it is larger than the sum of its proper divisors (25219346).

50438686 is a wasteful number, since it uses less digits than its factorization.

50438686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25219345.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 50438686 is about 7102.0198535346. The cubic root of 50438686 is about 369.4774361619.

The spelling of 50438686 in words is "fifty million, four hundred thirty-eight thousand, six hundred eighty-six".