50721474 has 16 divisors (see below), whose sum is σ = 103163040. Its totient is φ = 16620480.

The previous prime is 50721457. The next prime is 50721481. The reversal of 50721474 is 47412705.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71287 + ... + 71994.

It is an arithmetic number, because the mean of its divisors is an integer number (6447690).

Almost surely, 2^50721474 is an apocalyptic number.

50721474 is an abundant number, since it is smaller than the sum of its proper divisors (52441566).

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

50721474 is a wasteful number, since it uses less digits than its factorization.

50721474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143345.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 50721474 is about 7121.9010102640. The cubic root of 50721474 is about 370.1666500321.

The spelling of 50721474 in words is "fifty million, seven hundred twenty-one thousand, four hundred seventy-four".