25152513420 has 288 divisors, whose sum is σ = 77461106688. Its totient is φ = 6082103808.

The previous prime is 25152513413. The next prime is 25152513427. The reversal of 25152513420 is 2431525152.

It is an interprime number because it is at equal distance from previous prime (25152513413) and next prime (25152513427).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (25152513427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 112791429 + ... + 112791651.

It is an arithmetic number, because the mean of its divisors is an integer number (268962176).

Almost surely, 2^25152513420 is an apocalyptic number.

25152513420 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 25152513420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38730553344).

25152513420 is an abundant number, since it is smaller than the sum of its proper divisors (52308593268).

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

25152513420 is a wasteful number, since it uses less digits than its factorization.

25152513420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 25152513420 in words is "twenty-five billion, one hundred fifty-two million, five hundred thirteen thousand, four hundred twenty".