52785490 has 16 divisors (see below), whose sum is σ = 95163840. Its totient is φ = 21080880.

The previous prime is 52785479. The next prime is 52785503. The reversal of 52785490 is 9458725.

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, 3091 + ... + 10729.

It is an arithmetic number, because the mean of its divisors is an integer number (5947740).

Almost surely, 2^52785490 is an apocalyptic number.

52785490 is a deficient number, since it is larger than the sum of its proper divisors (42378350).

52785490 is a wasteful number, since it uses less digits than its factorization.

52785490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8337.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 52785490 is about 7265.3623447148. The cubic root of 52785490 is about 375.1211223556.

The spelling of 52785490 in words is "fifty-two million, seven hundred eighty-five thousand, four hundred ninety".