25234000040 has 64 divisors (see below), whose sum is σ = 56997388800. Its totient is φ = 10054420992.

The previous prime is 25234000003. The next prime is 25234000049. The reversal of 25234000040 is 4000043252.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 25233999976 and 25234000021.

It is not an unprimeable number, because it can be changed into a prime (25234000049) by changing a digit.

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, 19130501 + ... + 19131819.

It is an arithmetic number, because the mean of its divisors is an integer number (890584200).

Almost surely, 2^25234000040 is an apocalyptic number.

25234000040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25234000040 is an abundant number, since it is smaller than the sum of its proper divisors (31763388760).

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

25234000040 is a wasteful number, since it uses less digits than its factorization.

25234000040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826 (or 2822 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 25234000040 its reverse (4000043252), we get a palindrome (29234043292).

The spelling of 25234000040 in words is "twenty-five billion, two hundred thirty-four million, forty", and thus it is an aban number.