2549725101940 has 24 divisors (see below), whose sum is σ = 5366347950600. Its totient is φ = 1017618567168.

The previous prime is 2549725101919. The next prime is 2549725101953. The reversal of 2549725101940 is 491015279452.

It can be written as a sum of positive squares in 4 ways, for example, as 124641478116 + 2425083623824 = 353046^2 + 1557268^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141957897 + ... + 141975856.

It is an arithmetic number, because the mean of its divisors is an integer number (223597831275).

Almost surely, 2^{2549725101940} is an apocalyptic number.

2549725101940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2549725101940 is an abundant number, since it is smaller than the sum of its proper divisors (2816622848660).

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

2549725101940 is a wasteful number, since it uses less digits than its factorization.

2549725101940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283934211 (or 283934209 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 2549725101940 in words is "two trillion, five hundred forty-nine billion, seven hundred twenty-five million, one hundred one thousand, nine hundred forty".