50642740 has 12 divisors (see below), whose sum is σ = 106349796. Its totient is φ = 20257088.

The previous prime is 50642737. The next prime is 50642741. The reversal of 50642740 is 4724605.

50642740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13749264 + 36893476 = 3708^2 + 6074^2 .

It is a super-2 number, since 2×50642740² = 5129374229415200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50642699 and 50642708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50642741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1266049 + ... + 1266088.

It is an arithmetic number, because the mean of its divisors is an integer number (8862483).

Almost surely, 2^50642740 is an apocalyptic number.

It is an amenable number.

50642740 is an abundant number, since it is smaller than the sum of its proper divisors (55707056).

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

50642740 is a wasteful number, since it uses less digits than its factorization.

50642740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532146 (or 2532144 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 50642740 is about 7116.3712663126. The cubic root of 50642740 is about 369.9750165746.

The spelling of 50642740 in words is "fifty million, six hundred forty-two thousand, seven hundred forty".