25561346153 has 16 divisors (see below), whose sum is σ = 29470414464. Its totient is φ = 21717121920.

The previous prime is 25561346137. The next prime is 25561346159. The reversal of 25561346153 is 35164316552.

It is a cyclic number.

It is not a de Polignac number, because 25561346153 - 2⁴ = 25561346137 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 25561346153.

It is not an unprimeable number, because it can be changed into a prime (25561346159) 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, 629558 + ... + 668928.

It is an arithmetic number, because the mean of its divisors is an integer number (1841900904).

Almost surely, 2^25561346153 is an apocalyptic number.

It is an amenable number.

25561346153 is a deficient number, since it is larger than the sum of its proper divisors (3909068311).

25561346153 is a wasteful number, since it uses less digits than its factorization.

25561346153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40192.

The product of its digits is 324000, while the sum is 41.

The spelling of 25561346153 in words is "twenty-five billion, five hundred sixty-one million, three hundred forty-six thousand, one hundred fifty-three".