25032535121 has 4 divisors (see below), whose sum is σ = 27308220144. Its totient is φ = 22756850100.

The previous prime is 25032535103. The next prime is 25032535127. The reversal of 25032535121 is 12153523052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25032535121 - 2⁶ = 25032535057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25032535127) 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, 1137842495 + ... + 1137842516.

It is an arithmetic number, because the mean of its divisors is an integer number (6827055036).

Almost surely, 2^25032535121 is an apocalyptic number.

It is an amenable number.

25032535121 is a deficient number, since it is larger than the sum of its proper divisors (2275685023).

25032535121 is a wasteful number, since it uses less digits than its factorization.

25032535121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275685022.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 25032535121 in words is "twenty-five billion, thirty-two million, five hundred thirty-five thousand, one hundred twenty-one".