2251023225540 has 24 divisors (see below), whose sum is σ = 6302865031680. Its totient is φ = 600272860128.

The previous prime is 2251023225527. The next prime is 2251023225611. The reversal of 2251023225540 is 455223201522.

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, 18758526820 + ... + 18758526939.

It is an arithmetic number, because the mean of its divisors is an integer number (262619376320).

Almost surely, 2^{2251023225540} is an apocalyptic number.

2251023225540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2251023225540 is an abundant number, since it is smaller than the sum of its proper divisors (4051841806140).

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

2251023225540 is a wasteful number, since it uses less digits than its factorization.

2251023225540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37517053771 (or 37517053769 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 2251023225540 in words is "two trillion, two hundred fifty-one billion, twenty-three million, two hundred twenty-five thousand, five hundred forty".