25230351342 has 64 divisors (see below), whose sum is σ = 58983634944. Its totient is φ = 7044844800.

The previous prime is 25230351281. The next prime is 25230351373. The reversal of 25230351342 is 24315303252.

It is a super-2 number, since 2×25230351342² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1374658 + ... + 1392890.

It is an arithmetic number, because the mean of its divisors is an integer number (921619296).

Almost surely, 2^25230351342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25230351342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29491817472).

25230351342 is an abundant number, since it is smaller than the sum of its proper divisors (33753283602).

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

25230351342 is a wasteful number, since it uses less digits than its factorization.

25230351342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18993.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 25230351342 its reverse (24315303252), we get a palindrome (49545654594).

The spelling of 25230351342 in words is "twenty-five billion, two hundred thirty million, three hundred fifty-one thousand, three hundred forty-two".