25445606421210 has 16 divisors (see below), whose sum is σ = 61069455410976. Its totient is φ = 6785495045648.

The previous prime is 25445606421167. The next prime is 25445606421211. The reversal of 25445606421210 is 1212460654452.

It is a super-2 number, since 2×25445606421210² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25445606421211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424093440324 + ... + 424093440383.

It is an arithmetic number, because the mean of its divisors is an integer number (3816840963186).

Almost surely, 2^{25445606421210} is an apocalyptic number.

25445606421210 is an abundant number, since it is smaller than the sum of its proper divisors (35623848989766).

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

25445606421210 is a wasteful number, since it uses less digits than its factorization.

25445606421210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848186880717.

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 25445606421210 in words is "twenty-five trillion, four hundred forty-five billion, six hundred six million, four hundred twenty-one thousand, two hundred ten".