25551225104 has 20 divisors (see below), whose sum is σ = 49508563020. Its totient is φ = 12774821760.

The previous prime is 25551225079. The next prime is 25551225107. The reversal of 25551225104 is 40152215552.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20643942400 + 4907282704 = 143680^2 + 70052^2 .

It is not an unprimeable number, because it can be changed into a prime (25551225107) 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, 286202 + ... + 364710.

It is an arithmetic number, because the mean of its divisors is an integer number (2475428151).

Almost surely, 2^25551225104 is an apocalyptic number.

It is an amenable number.

25551225104 is a deficient number, since it is larger than the sum of its proper divisors (23957337916).

25551225104 is a wasteful number, since it uses less digits than its factorization.

25551225104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98858 (or 98852 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 25551225104 in words is "twenty-five billion, five hundred fifty-one million, two hundred twenty-five thousand, one hundred four".