25235243012 has 48 divisors (see below), whose sum is σ = 51923918592. Its totient is φ = 10505925120.

The previous prime is 25235243009. The next prime is 25235243021. The reversal of 25235243012 is 21034253252.

It is a super-3 number, since 3×25235243012³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220313 + ... + 314655.

It is an arithmetic number, because the mean of its divisors is an integer number (1081748304).

Almost surely, 2^25235243012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25235243012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25961959296).

25235243012 is an abundant number, since it is smaller than the sum of its proper divisors (26688675580).

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

25235243012 is a wasteful number, since it uses less digits than its factorization.

25235243012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94628 (or 94626 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 25235243012 its reverse (21034253252), we get a palindrome (46269496264).

The spelling of 25235243012 in words is "twenty-five billion, two hundred thirty-five million, two hundred forty-three thousand, twelve".