25230430320 has 80 divisors (see below), whose sum is σ = 82815190560. Its totient is φ = 6332342272.

The previous prime is 25230430301. The next prime is 25230430327. The reversal of 25230430320 is 2303403252.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×25230430320² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25230430327) 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, 3087885 + ... + 3096044.

It is an arithmetic number, because the mean of its divisors is an integer number (1035189882).

Almost surely, 2^25230430320 is an apocalyptic number.

25230430320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25230430320 is an abundant number, since it is smaller than the sum of its proper divisors (57584760240).

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

25230430320 is a wasteful number, since it uses less digits than its factorization.

25230430320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6183962 (or 6183956 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

Adding to 25230430320 its reverse (2303403252), we get a palindrome (27533833572).

The spelling of 25230430320 in words is "twenty-five billion, two hundred thirty million, four hundred thirty thousand, three hundred twenty".