2545021695 has 16 divisors (see below), whose sum is σ = 4072666752. Its totient is φ = 1357134240.

The previous prime is 2545021673. The next prime is 2545021697. The reversal of 2545021695 is 5961205452.

It is not a de Polignac number, because 2545021695 - 2⁸ = 2545021439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545021697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161100 + ... + 176190.

It is an arithmetic number, because the mean of its divisors is an integer number (254541672).

Almost surely, 2^2545021695 is an apocalyptic number.

2545021695 is a deficient number, since it is larger than the sum of its proper divisors (1527645057).

2545021695 is a wasteful number, since it uses less digits than its factorization.

2545021695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26342.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 2545021695 is about 50448.2080454797. The cubic root of 2545021695 is about 1365.3075639643.

The spelling of 2545021695 in words is "two billion, five hundred forty-five million, twenty-one thousand, six hundred ninety-five".