50972740 has 72 divisors (see below), whose sum is σ = 134131032. Its totient is φ = 16128000.

The previous prime is 50972737. The next prime is 50972797. The reversal of 50972740 is 4727905.

It can be written as a sum of positive squares in 4 ways, for example, as 1382976 + 49589764 = 1176^2 + 7042^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50972696 and 50972705.

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, 10740 + ... + 14740.

It is an arithmetic number, because the mean of its divisors is an integer number (1862931).

Almost surely, 2^50972740 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 50972740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67065516).

50972740 is an abundant number, since it is smaller than the sum of its proper divisors (83158292).

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

50972740 is a wasteful number, since it uses less digits than its factorization.

50972740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037 (or 4028 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 50972740 is about 7139.5195916812. The cubic root of 50972740 is about 370.7768920819.

The spelling of 50972740 in words is "fifty million, nine hundred seventy-two thousand, seven hundred forty".