52489690 has 32 divisors (see below), whose sum is σ = 103374144. Its totient is φ = 19031040.

The previous prime is 52489669. The next prime is 52489691. The reversal of 52489690 is 9698425.

It is a super-2 number, since 2×52489690² = 5510335112592200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52489691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63057 + ... + 63883.

It is an arithmetic number, because the mean of its divisors is an integer number (3230442).

Almost surely, 2^52489690 is an apocalyptic number.

52489690 is a deficient number, since it is larger than the sum of its proper divisors (50884454).

52489690 is a wasteful number, since it uses less digits than its factorization.

52489690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 52489690 is about 7244.9768805704. The cubic root of 52489690 is about 374.4191065580.

The spelling of 52489690 in words is "fifty-two million, four hundred eighty-nine thousand, six hundred ninety".