52491784 has 32 divisors (see below), whose sum is σ = 105197400. Its totient is φ = 24468480.

The previous prime is 52491779. The next prime is 52491797. The reversal of 52491784 is 48719425.

It can be written as a sum of positive squares in 4 ways, for example, as 50722884 + 1768900 = 7122^2 + 1330^2 .

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, 13054 + ... + 16594.

Almost surely, 2^52491784 is an apocalyptic number.

It is an amenable number.

52491784 is an abundant number, since it is smaller than the sum of its proper divisors (52705616).

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

52491784 is a wasteful number, since it uses less digits than its factorization.

52491784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673 (or 3669 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 52491784 is about 7245.1213930479. The cubic root of 52491784 is about 374.4240854608.

The spelling of 52491784 in words is "fifty-two million, four hundred ninety-one thousand, seven hundred eighty-four".