25133332028 has 48 divisors (see below), whose sum is σ = 51910832064. Its totient is φ = 10422328320.

The previous prime is 25133332027. The next prime is 25133332033. The reversal of 25133332028 is 82023333152.

It is a junction number, because it is equal to n+sod(n) for n = 25133331985 and 25133332003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25133332027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120500 + ... + 254532.

It is an arithmetic number, because the mean of its divisors is an integer number (1081475668).

Almost surely, 2^25133332028 is an apocalyptic number.

25133332028 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 25133332028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25955416032).

25133332028 is an abundant number, since it is smaller than the sum of its proper divisors (26777500036).

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

25133332028 is a wasteful number, since it uses less digits than its factorization.

25133332028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134262 (or 134260 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 25133332028 in words is "twenty-five billion, one hundred thirty-three million, three hundred thirty-two thousand, twenty-eight".