2545770613 has 4 divisors (see below), whose sum is σ = 2679758560. Its totient is φ = 2411782668.

The previous prime is 2545770599. The next prime is 2545770637. The reversal of 2545770613 is 3160775452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2545770613 - 2²⁵ = 2512216181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545770653) 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, 66993945 + ... + 66993982.

It is an arithmetic number, because the mean of its divisors is an integer number (669939640).

Almost surely, 2^2545770613 is an apocalyptic number.

It is an amenable number.

2545770613 is a deficient number, since it is larger than the sum of its proper divisors (133987947).

2545770613 is a wasteful number, since it uses less digits than its factorization.

2545770613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133987946.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 2545770613 is about 50455.6301417394. The cubic root of 2545770613 is about 1365.4414728594.

The spelling of 2545770613 in words is "two billion, five hundred forty-five million, seven hundred seventy thousand, six hundred thirteen".