252258478775 has 12 divisors (see below), whose sum is σ = 312877740912. Its totient is φ = 201756959040.

The previous prime is 252258478763. The next prime is 252258478807. The reversal of 252258478775 is 577874852252.

It is a de Polignac number, because none of the positive numbers 2^k-252258478775 is a prime.

It is a super-2 number, since 2×252258478775² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1142147 + ... + 1344996.

It is an arithmetic number, because the mean of its divisors is an integer number (26073145076).

Almost surely, 2^252258478775 is an apocalyptic number.

252258478775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

252258478775 is a deficient number, since it is larger than the sum of its proper divisors (60619262137).

252258478775 is a wasteful number, since it uses less digits than its factorization.

252258478775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491210 (or 2491205 counting only the distinct ones).

The product of its digits is 87808000, while the sum is 62.

The spelling of 252258478775 in words is "two hundred fifty-two billion, two hundred fifty-eight million, four hundred seventy-eight thousand, seven hundred seventy-five".