25479156560 has 480 divisors, whose sum is σ = 75286609920. Its totient is φ = 7925299200.

The previous prime is 25479156557. The next prime is 25479156569. The reversal of 25479156560 is 6565197452.

It is a junction number, because it is equal to n+sod(n) for n = 25479156499 and 25479156508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25479156569) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 200623217 + ... + 200623343.

It is an arithmetic number, because the mean of its divisors is an integer number (156847104).

Almost surely, 2^25479156560 is an apocalyptic number.

25479156560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25479156560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37643304960).

25479156560 is an abundant number, since it is smaller than the sum of its proper divisors (49807453360).

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

25479156560 is a wasteful number, since it uses less digits than its factorization.

25479156560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 25479156560 in words is "twenty-five billion, four hundred seventy-nine million, one hundred fifty-six thousand, five hundred sixty".