25305255305553 has 32 divisors (see below), whose sum is σ = 34685970508800. Its totient is φ = 16398247110336.

The previous prime is 25305255305537. The next prime is 25305255305609. The reversal of 25305255305553 is 35550355250352.

It is not a de Polignac number, because 25305255305553 - 2⁴ = 25305255305537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25305255305653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1305798418 + ... + 1305817796.

It is an arithmetic number, because the mean of its divisors is an integer number (1083936578400).

Almost surely, 2^{25305255305553} is an apocalyptic number.

It is an amenable number.

25305255305553 is a deficient number, since it is larger than the sum of its proper divisors (9380715203247).

25305255305553 is a wasteful number, since it uses less digits than its factorization.

25305255305553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30261.

The product of its (nonzero) digits is 8437500, while the sum is 48.

The spelling of 25305255305553 in words is "twenty-five trillion, three hundred five billion, two hundred fifty-five million, three hundred five thousand, five hundred fifty-three".