50156172 has 72 divisors (see below), whose sum is σ = 143462592. Its totient is φ = 15195600.

The previous prime is 50156131. The next prime is 50156209. The reversal of 50156172 is 27165105.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8347 + ... + 13037.

It is an arithmetic number, because the mean of its divisors is an integer number (1992536).

Almost surely, 2^50156172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50156172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71731296).

50156172 is an abundant number, since it is smaller than the sum of its proper divisors (93306420).

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

50156172 is a wasteful number, since it uses less digits than its factorization.

50156172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4721 (or 4707 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 50156172 is about 7082.1022302703. The cubic root of 50156172 is about 368.7863129230.

The spelling of 50156172 in words is "fifty million, one hundred fifty-six thousand, one hundred seventy-two".