25551000460 has 96 divisors (see below), whose sum is σ = 56464386048. Its totient is φ = 9701959680.

The previous prime is 25551000439. The next prime is 25551000463. The reversal of 25551000460 is 6400015552.

It is not an unprimeable number, because it can be changed into a prime (25551000463) 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, 5730552 + ... + 5735008.

It is an arithmetic number, because the mean of its divisors is an integer number (588170688).

Almost surely, 2^25551000460 is an apocalyptic number.

25551000460 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 25551000460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28232193024).

25551000460 is an abundant number, since it is smaller than the sum of its proper divisors (30913385588).

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

25551000460 is a wasteful number, since it uses less digits than its factorization.

25551000460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4691 (or 4689 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 25551000460 in words is "twenty-five billion, five hundred fifty-one million, four hundred sixty", and thus it is an aban number.