52491983 has 2 divisors, whose sum is σ = 52491984. Its totient is φ = 52491982.

The previous prime is 52491973. The next prime is 52492007. The reversal of 52491983 is 38919425.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52491983 - 2⁶ = 52491919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52491983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52491913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26245991 + 26245992.

It is an arithmetic number, because the mean of its divisors is an integer number (26245992).

Almost surely, 2^52491983 is an apocalyptic number.

52491983 is a deficient number, since it is larger than the sum of its proper divisors (1).

52491983 is an equidigital number, since it uses as much as digits as its factorization.

52491983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 52491983 is about 7245.1351264141. The cubic root of 52491983 is about 374.4245586161.

The spelling of 52491983 in words is "fifty-two million, four hundred ninety-one thousand, nine hundred eighty-three".