52640499 has 16 divisors (see below), whose sum is σ = 71781120. Its totient is φ = 34304160.

The previous prime is 52640479. The next prime is 52640503. The reversal of 52640499 is 99404625.

It is not a de Polignac number, because 52640499 - 2⁹ = 52639987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52640479) 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, 31954 + ... + 33560.

It is an arithmetic number, because the mean of its divisors is an integer number (4486320).

Almost surely, 2^52640499 is an apocalyptic number.

52640499 is a deficient number, since it is larger than the sum of its proper divisors (19140621).

52640499 is a wasteful number, since it uses less digits than its factorization.

52640499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 52640499 is about 7255.3772472560. The cubic root of 52640499 is about 374.7773469389. Note that the first 3 decimals are identical.

The spelling of 52640499 in words is "fifty-two million, six hundred forty thousand, four hundred ninety-nine".