50155140 has 48 divisors (see below), whose sum is σ = 160497792. Its totient is φ = 11463936.

The previous prime is 50155121. The next prime is 50155141. The reversal of 50155140 is 4155105.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (50155141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59289 + ... + 60128.

It is an arithmetic number, because the mean of its divisors is an integer number (3343704).

Almost surely, 2^50155140 is an apocalyptic number.

It is an amenable number.

50155140 is an abundant number, since it is smaller than the sum of its proper divisors (110342652).

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

50155140 is a wasteful number, since it uses less digits than its factorization.

50155140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119436 (or 119434 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 50155140 is about 7082.0293701735. The cubic root of 50155140 is about 368.7837835561.

The spelling of 50155140 in words is "fifty million, one hundred fifty-five thousand, one hundred forty".