25101212660 has 12 divisors (see below), whose sum is σ = 52712546628. Its totient is φ = 10040485056.

The previous prime is 25101212639. The next prime is 25101212681. The reversal of 25101212660 is 6621210152.

It is an interprime number because it is at equal distance from previous prime (25101212639) and next prime (25101212681).

It can be written as a sum of positive squares in 2 ways, for example, as 4853630224 + 20247582436 = 69668^2 + 142294^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627530297 + ... + 627530336.

It is an arithmetic number, because the mean of its divisors is an integer number (4392712219).

Almost surely, 2^25101212660 is an apocalyptic number.

25101212660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25101212660 is an abundant number, since it is smaller than the sum of its proper divisors (27611333968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25101212660 is a wasteful number, since it uses less digits than its factorization.

25101212660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255060642 (or 1255060640 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 25101212660 in words is "twenty-five billion, one hundred one million, two hundred twelve thousand, six hundred sixty".