53991259 has 16 divisors (see below), whose sum is σ = 63218880. Its totient is φ = 45152640.

The previous prime is 53991247. The next prime is 53991263. The reversal of 53991259 is 95219935.

It is a cyclic number.

It is not a de Polignac number, because 53991259 - 2¹³ = 53983067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53991209) 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, 99529 + ... + 100069.

It is an arithmetic number, because the mean of its divisors is an integer number (3951180).

Almost surely, 2^53991259 is an apocalyptic number.

53991259 is a deficient number, since it is larger than the sum of its proper divisors (9227621).

53991259 is a wasteful number, since it uses less digits than its factorization.

53991259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870.

The product of its digits is 109350, while the sum is 43.

The square root of 53991259 is about 7347.8744545617. The cubic root of 53991259 is about 377.9559194792.

The spelling of 53991259 in words is "fifty-three million, nine hundred ninety-one thousand, two hundred fifty-nine".