25230726648 has 96 divisors (see below), whose sum is σ = 71265317760. Its totient is φ = 8054968320.

The previous prime is 25230726643. The next prime is 25230726649. The reversal of 25230726648 is 84662703252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25230726643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158236 + ... + 274772.

It is an arithmetic number, because the mean of its divisors is an integer number (742347060).

Almost surely, 2^25230726648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25230726648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35632658880).

25230726648 is an abundant number, since it is smaller than the sum of its proper divisors (46034591112).

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

25230726648 is a wasteful number, since it uses less digits than its factorization.

25230726648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116677 (or 116670 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 25230726648 in words is "twenty-five billion, two hundred thirty million, seven hundred twenty-six thousand, six hundred forty-eight".