25147264548 has 96 divisors (see below), whose sum is σ = 68615092224. Its totient is φ = 7020096768.

The previous prime is 25147264547. The next prime is 25147264559. The reversal of 25147264548 is 84546274152.

It is a junction number, because it is equal to n+sod(n) for n = 25147264497 and 25147264506.

It is not an unprimeable number, because it can be changed into a prime (25147264543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 636961 + ... + 675287.

It is an arithmetic number, because the mean of its divisors is an integer number (714740544).

Almost surely, 2^25147264548 is an apocalyptic number.

25147264548 is a gapful number since it is divisible by the number (28) 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 25147264548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34307546112).

25147264548 is an abundant number, since it is smaller than the sum of its proper divisors (43467827676).

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

25147264548 is a wasteful number, since it uses less digits than its factorization.

25147264548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38521 (or 38519 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 48.

The spelling of 25147264548 in words is "twenty-five billion, one hundred forty-seven million, two hundred sixty-four thousand, five hundred forty-eight".