25352769288 has 128 divisors (see below), whose sum is σ = 79185392640. Its totient is φ = 6571488000.

The previous prime is 25352769287. The next prime is 25352769331. The reversal of 25352769288 is 88296725352.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25352769287) 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, 893398 + ... + 921338.

It is an arithmetic number, because the mean of its divisors is an integer number (618635880).

Almost surely, 2^25352769288 is an apocalyptic number.

25352769288 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 25352769288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39592696320).

25352769288 is an abundant number, since it is smaller than the sum of its proper divisors (53832623352).

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

25352769288 is a wasteful number, since it uses less digits than its factorization.

25352769288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28459 (or 28455 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 57.

The spelling of 25352769288 in words is "twenty-five billion, three hundred fifty-two million, seven hundred sixty-nine thousand, two hundred eighty-eight".