25533055250553 has 32 divisors (see below), whose sum is σ = 36693215848960. Its totient is φ = 15740823208320.

The previous prime is 25533055250531. The next prime is 25533055250669. The reversal of 25533055250553 is 35505255033552.

It is not a de Polignac number, because 25533055250553 - 2²¹ = 25533053153401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25533055250753) 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, 350325 + ... + 7154637.

It is an arithmetic number, because the mean of its divisors is an integer number (1146662995280).

Almost surely, 2^{25533055250553} is an apocalyptic number.

It is an amenable number.

25533055250553 is a deficient number, since it is larger than the sum of its proper divisors (11160160598407).

25533055250553 is a wasteful number, since it uses less digits than its factorization.

25533055250553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6805909.

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

The spelling of 25533055250553 in words is "twenty-five trillion, five hundred thirty-three billion, fifty-five million, two hundred fifty thousand, five hundred fifty-three".