25505050575 has 24 divisors (see below), whose sum is σ = 42184434448. Its totient is φ = 13597505280.

The previous prime is 25505050559. The next prime is 25505050591. The reversal of 25505050575 is 57505050552.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25505050559) and next prime (25505050591).

It is not a de Polignac number, because 25505050575 - 2⁴ = 25505050559 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 137259 + ... + 264291.

Almost surely, 2^25505050575 is an apocalyptic number.

25505050575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25505050575 is a deficient number, since it is larger than the sum of its proper divisors (16679383873).

25505050575 is a wasteful number, since it uses less digits than its factorization.

25505050575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129723 (or 129718 counting only the distinct ones).

The product of its (nonzero) digits is 218750, while the sum is 39.

The spelling of 25505050575 in words is "twenty-five billion, five hundred five million, fifty thousand, five hundred seventy-five".