25040241525 has 48 divisors (see below), whose sum is σ = 44811131904. Its totient is φ = 12264833280.

The previous prime is 25040241521. The next prime is 25040241533. The reversal of 25040241525 is 52514204052.

It is not a de Polignac number, because 25040241525 - 2² = 25040241521 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25040241492 and 25040241501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25040241521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126892 + ... + 257258.

It is an arithmetic number, because the mean of its divisors is an integer number (933565248).

Almost surely, 2^25040241525 is an apocalyptic number.

25040241525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25040241525 is a deficient number, since it is larger than the sum of its proper divisors (19770890379).

25040241525 is a wasteful number, since it uses less digits than its factorization.

25040241525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130590 (or 130585 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 25040241525 its reverse (52514204052), we get a palindrome (77554445577).

The spelling of 25040241525 in words is "twenty-five billion, forty million, two hundred forty-one thousand, five hundred twenty-five".