2125561306452 has 24 divisors (see below), whose sum is σ = 5220676893600. Its totient is φ = 671229886176.

The previous prime is 2125561306397. The next prime is 2125561306469. The reversal of 2125561306452 is 2546031655212.

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, 4661318427 + ... + 4661318882.

It is an arithmetic number, because the mean of its divisors is an integer number (217528203900).

Almost surely, 2^{2125561306452} is an apocalyptic number.

It is an amenable number.

2125561306452 is an abundant number, since it is smaller than the sum of its proper divisors (3095115587148).

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

2125561306452 is a wasteful number, since it uses less digits than its factorization.

2125561306452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9322637335 (or 9322637333 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 2125561306452 in words is "two trillion, one hundred twenty-five billion, five hundred sixty-one million, three hundred six thousand, four hundred fifty-two".