25550010161 has 8 divisors (see below), whose sum is σ = 28711717440. Its totient is φ = 22559206032.

The previous prime is 25550010131. The next prime is 25550010179. The reversal of 25550010161 is 16101005552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25550010161 - 2¹⁸ = 25549748017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25550010161.

It is not an unprimeable number, because it can be changed into a prime (25550010131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42725471 + ... + 42726068.

It is an arithmetic number, because the mean of its divisors is an integer number (3588964680).

Almost surely, 2^25550010161 is an apocalyptic number.

It is an amenable number.

25550010161 is a deficient number, since it is larger than the sum of its proper divisors (3161707279).

25550010161 is a wasteful number, since it uses less digits than its factorization.

25550010161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85451575.

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 25550010161 in words is "twenty-five billion, five hundred fifty million, ten thousand, one hundred sixty-one".