52486390 has 16 divisors (see below), whose sum is σ = 103064400. Its totient is φ = 19085920.

The previous prime is 52486381. The next prime is 52486411. The reversal of 52486390 is 9368425.

It is a super-2 number, since 2×52486390² = 5509642270464200, which contains 22 as substring.

It is a congruent number.

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, 238465 + ... + 238684.

It is an arithmetic number, because the mean of its divisors is an integer number (6441525).

Almost surely, 2^52486390 is an apocalyptic number.

52486390 is a deficient number, since it is larger than the sum of its proper divisors (50578010).

52486390 is a wasteful number, since it uses less digits than its factorization.

52486390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477167.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 52486390 is about 7244.7491329928. The cubic root of 52486390 is about 374.4112598809.

The spelling of 52486390 in words is "fifty-two million, four hundred eighty-six thousand, three hundred ninety".