25233154240 has 112 divisors (see below), whose sum is σ = 69337562112. Its totient is φ = 8567294976.

The previous prime is 25233154237. The next prime is 25233154273. The reversal of 25233154240 is 4245133252.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176037 + ... + 285403.

It is an arithmetic number, because the mean of its divisors is an integer number (619085376).

Almost surely, 2^25233154240 is an apocalyptic number.

25233154240 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 25233154240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34668781056).

25233154240 is an abundant number, since it is smaller than the sum of its proper divisors (44104407872).

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

25233154240 is a wasteful number, since it uses less digits than its factorization.

25233154240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109494 (or 109484 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 25233154240 its reverse (4245133252), we get a palindrome (29478287492).

The spelling of 25233154240 in words is "twenty-five billion, two hundred thirty-three million, one hundred fifty-four thousand, two hundred forty".