2115025525643 has 4 divisors (see below), whose sum is σ = 2124102888648. Its totient is φ = 2105948162640.

The previous prime is 2115025525619. The next prime is 2115025525663. The reversal of 2115025525643 is 3465255205112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2115025525643 - 2¹⁸ = 2115025263499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2115025525643.

It is not an unprimeable number, because it can be changed into a prime (2115025525663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4538681153 + ... + 4538681618.

It is an arithmetic number, because the mean of its divisors is an integer number (531025722162).

Almost surely, 2^{2115025525643} is an apocalyptic number.

2115025525643 is a deficient number, since it is larger than the sum of its proper divisors (9077363005).

2115025525643 is an equidigital number, since it uses as much as digits as its factorization.

2115025525643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9077363004.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 2115025525643 in words is "two trillion, one hundred fifteen billion, twenty-five million, five hundred twenty-five thousand, six hundred forty-three".