25244146040 has 32 divisors (see below), whose sum is σ = 57361707360. Its totient is φ = 9997680000.

The previous prime is 25244146027. The next prime is 25244146061. The reversal of 25244146040 is 4064144252.

It is a junction number, because it is equal to n+sod(n) for n = 25244145988 and 25244146006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3120236 + ... + 3128315.

It is an arithmetic number, because the mean of its divisors is an integer number (1792553355).

Almost surely, 2^25244146040 is an apocalyptic number.

25244146040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25244146040 is an abundant number, since it is smaller than the sum of its proper divisors (32117561320).

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

25244146040 is a wasteful number, since it uses less digits than its factorization.

25244146040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6248663 (or 6248659 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

The spelling of 25244146040 in words is "twenty-five billion, two hundred forty-four million, one hundred forty-six thousand, forty".