25552615233 has 16 divisors (see below), whose sum is σ = 35575971840. Its totient is φ = 16283188944.

The previous prime is 25552615217. The next prime is 25552615261. The reversal of 25552615233 is 33251625552.

It is a happy number.

It is not a de Polignac number, because 25552615233 - 2⁴ = 25552615217 is a prime.

It is a super-2 number, since 2×25552615233² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25552615191 and 25552615200.

It is not an unprimeable number, because it can be changed into a prime (25552615733) 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, 26241 + ... + 227582.

It is an arithmetic number, because the mean of its divisors is an integer number (2223498240).

Almost surely, 2^25552615233 is an apocalyptic number.

25552615233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25552615233 is a deficient number, since it is larger than the sum of its proper divisors (10023356607).

25552615233 is a wasteful number, since it uses less digits than its factorization.

25552615233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255308.

The product of its digits is 270000, while the sum is 39.

The spelling of 25552615233 in words is "twenty-five billion, five hundred fifty-two million, six hundred fifteen thousand, two hundred thirty-three".