25479563100 has 36 divisors (see below), whose sum is σ = 73720870104. Its totient is φ = 6794550080.

The previous prime is 25479563077. The next prime is 25479563107. The reversal of 25479563100 is 136597452.

It is a super-2 number, since 2×25479563100² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25479563107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42465639 + ... + 42466238.

Almost surely, 2^25479563100 is an apocalyptic number.

25479563100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25479563100 is an abundant number, since it is smaller than the sum of its proper divisors (48241307004).

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

25479563100 is a wasteful number, since it uses less digits than its factorization.

25479563100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84931894 (or 84931887 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 25479563100 in words is "twenty-five billion, four hundred seventy-nine million, five hundred sixty-three thousand, one hundred".