2500731600420 has 48 divisors (see below), whose sum is σ = 7002147640320. Its totient is φ = 666852316416.

The previous prime is 2500731600383. The next prime is 2500731600443. The reversal of 2500731600420 is 240061370052.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 4666429 + ... + 5174651.

It is an arithmetic number, because the mean of its divisors is an integer number (145878075840).

Almost surely, 2^{2500731600420} is an apocalyptic number.

2500731600420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2500731600420 is an abundant number, since it is smaller than the sum of its proper divisors (4501416039900).

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

2500731600420 is a wasteful number, since it uses less digits than its factorization.

2500731600420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590244 (or 590242 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

Adding to 2500731600420 its reverse (240061370052), we get a palindrome (2740792970472).

The spelling of 2500731600420 in words is "two trillion, five hundred billion, seven hundred thirty-one million, six hundred thousand, four hundred twenty".