25440245153000 has 64 divisors (see below), whose sum is σ = 63031948621200. Its totient is φ = 9577504051200.

The previous prime is 25440245152961. The next prime is 25440245153003. The reversal of 25440245153000 is 35154204452.

It can be written as a sum of positive squares in 8 ways, for example, as 7374668021956 + 18065577131044 = 2715634^2 + 4250362^2 .

It is not an unprimeable number, because it can be changed into a prime (25440245153003) 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, 748225505 + ... + 748259504.

Almost surely, 2^{25440245153000} is an apocalyptic number.

25440245153000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25440245153000 is an abundant number, since it is smaller than the sum of its proper divisors (37591703468200).

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

25440245153000 is a wasteful number, since it uses less digits than its factorization.

25440245153000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496485047 (or 1496485033 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 25440245153000 its reverse (35154204452), we get a palindrome (25475399357452).

The spelling of 25440245153000 in words is "twenty-five trillion, four hundred forty billion, two hundred forty-five million, one hundred fifty-three thousand".