25115953196 has 12 divisors (see below), whose sum is σ = 43959571152. Its totient is φ = 12556075728.

The previous prime is 25115953193. The next prime is 25115953199. The reversal of 25115953196 is 69135951152.

It is an interprime number because it is at equal distance from previous prime (25115953193) and next prime (25115953199).

It is a super-2 number, since 2×25115953196² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25115953196.

It is not an unprimeable number, because it can be changed into a prime (25115953193) 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, 445280 + ... + 498503.

It is an arithmetic number, because the mean of its divisors is an integer number (3663297596).

Almost surely, 2^25115953196 is an apocalyptic number.

It is an amenable number.

25115953196 is a deficient number, since it is larger than the sum of its proper divisors (18843617956).

25115953196 is a wasteful number, since it uses less digits than its factorization.

25115953196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950440 (or 950438 counting only the distinct ones).

The product of its digits is 364500, while the sum is 47.

The spelling of 25115953196 in words is "twenty-five billion, one hundred fifteen million, nine hundred fifty-three thousand, one hundred ninety-six".