25105101210 has 96 divisors (see below), whose sum is σ = 75862500480. Its totient is φ = 5641041024.

The previous prime is 25105101193. The next prime is 25105101211. The reversal of 25105101210 is 1210150152.

25105101210 is a `hidden beast` number, since 25 + 10 + 510 + 121 + 0 = 666.

It is a super-2 number, since 2×25105101210² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (25105101211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 300537 + ... + 374876.

It is an arithmetic number, because the mean of its divisors is an integer number (790234380).

Almost surely, 2^25105101210 is an apocalyptic number.

25105101210 is an abundant number, since it is smaller than the sum of its proper divisors (50757399270).

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

25105101210 is a wasteful number, since it uses less digits than its factorization.

25105101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675492 (or 675489 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 25105101210 its reverse (1210150152), we get a palindrome (26315251362).

The spelling of 25105101210 in words is "twenty-five billion, one hundred five million, one hundred one thousand, two hundred ten".