50011138 has 8 divisors (see below), whose sum is σ = 77603580. Its totient is φ = 24143280.

The previous prime is 50011111. The next prime is 50011139. The reversal of 50011138 is 83111005.

It can be written as a sum of positive squares in 2 ways, for example, as 48260809 + 1750329 = 6947^2 + 1323^2 .

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

It is a super-4 number, since 4×50011138⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (50011139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431073 + ... + 431188.

Almost surely, 2^50011138 is an apocalyptic number.

50011138 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

50011138 is a deficient number, since it is larger than the sum of its proper divisors (27592442).

50011138 is a wasteful number, since it uses less digits than its factorization.

50011138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862292.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 50011138 is about 7071.8553435432. The cubic root of 50011138 is about 368.4305029950.

The spelling of 50011138 in words is "fifty million, eleven thousand, one hundred thirty-eight".