50251140 has 36 divisors (see below), whose sum is σ = 152429004. Its totient is φ = 13400256.

The previous prime is 50251121. The next prime is 50251153. The reversal of 50251140 is 4115205.

It can be written as a sum of positive squares in 2 ways, for example, as 37161216 + 13089924 = 6096^2 + 3618^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139407 + ... + 139766.

It is an arithmetic number, because the mean of its divisors is an integer number (4234139).

Almost surely, 2^50251140 is an apocalyptic number.

It is an amenable number.

50251140 is an abundant number, since it is smaller than the sum of its proper divisors (102177864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50251140 is a wasteful number, since it uses less digits than its factorization.

50251140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279188 (or 279183 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 50251140 is about 7088.8038483231. The cubic root of 50251140 is about 369.0189251536.

Adding to 50251140 its reverse (4115205), we get a palindrome (54366345).

The spelling of 50251140 in words is "fifty million, two hundred fifty-one thousand, one hundred forty".