25553027553 has 16 divisors (see below), whose sum is σ = 35867289600. Its totient is φ = 16137228240.

The previous prime is 25553027527. The next prime is 25553027581. The reversal of 25553027553 is 35572035552.

It is not a de Polignac number, because 25553027553 - 2⁹ = 25553027041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25553027593) 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, 1142088 + ... + 1164246.

It is an arithmetic number, because the mean of its divisors is an integer number (2241705600).

Almost surely, 2^25553027553 is an apocalyptic number.

It is an amenable number.

25553027553 is a deficient number, since it is larger than the sum of its proper divisors (10314262047).

25553027553 is a wasteful number, since it uses less digits than its factorization.

25553027553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42412.

The product of its (nonzero) digits is 787500, while the sum is 42.

The spelling of 25553027553 in words is "twenty-five billion, five hundred fifty-three million, twenty-seven thousand, five hundred fifty-three".