52492780 has 12 divisors (see below), whose sum is σ = 110234880. Its totient is φ = 20997104.

The previous prime is 52492777. The next prime is 52492789. The reversal of 52492780 is 8729425.

It is not an unprimeable number, because it can be changed into a prime (52492789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312300 + ... + 1312339.

It is an arithmetic number, because the mean of its divisors is an integer number (9186240).

Almost surely, 2^52492780 is an apocalyptic number.

It is an amenable number.

52492780 is an abundant number, since it is smaller than the sum of its proper divisors (57742100).

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

52492780 is a wasteful number, since it uses less digits than its factorization.

52492780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624648 (or 2624646 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 52492780 is about 7245.1901286302. The cubic root of 52492780 is about 374.4264536030.

The spelling of 52492780 in words is "fifty-two million, four hundred ninety-two thousand, seven hundred eighty".