25533503023 has 4 divisors (see below), whose sum is σ = 29181146320. Its totient is φ = 21885859728.

The previous prime is 25533503011. The next prime is 25533503027. The reversal of 25533503023 is 32030533552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25533503023 - 2⁵ = 25533502991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25533503027) 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, 1823821638 + ... + 1823821651.

It is an arithmetic number, because the mean of its divisors is an integer number (7295286580).

Almost surely, 2^25533503023 is an apocalyptic number.

25533503023 is a deficient number, since it is larger than the sum of its proper divisors (3647643297).

25533503023 is an equidigital number, since it uses as much as digits as its factorization.

25533503023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647643296.

The product of its (nonzero) digits is 40500, while the sum is 31.

The spelling of 25533503023 in words is "twenty-five billion, five hundred thirty-three million, five hundred three thousand, twenty-three".