25055252553 has 4 divisors (see below), whose sum is σ = 33407003408. Its totient is φ = 16703501700.

The previous prime is 25055252539. The next prime is 25055252567. The reversal of 25055252553 is 35525255052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (25055252539) and next prime (25055252567).

It is not a de Polignac number, because 25055252553 - 2⁹ = 25055252041 is a prime.

It is a super-2 number, since 2×25055252553² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25055252153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4175875423 + ... + 4175875428.

It is an arithmetic number, because the mean of its divisors is an integer number (8351750852).

Almost surely, 2^25055252553 is an apocalyptic number.

It is an amenable number.

25055252553 is a deficient number, since it is larger than the sum of its proper divisors (8351750855).

25055252553 is an equidigital number, since it uses as much as digits as its factorization.

25055252553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8351750854.

The product of its (nonzero) digits is 375000, while the sum is 39.

The spelling of 25055252553 in words is "twenty-five billion, fifty-five million, two hundred fifty-two thousand, five hundred fifty-three".