2545380773 has 16 divisors (see below), whose sum is σ = 2799800640. Its totient is φ = 2299684224.

The previous prime is 2545380769. The next prime is 2545380781. The reversal of 2545380773 is 3770835452.

It is a cyclic number.

It is not a de Polignac number, because 2545380773 - 2² = 2545380769 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545380793) 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, 171590 + ... + 185832.

It is an arithmetic number, because the mean of its divisors is an integer number (174987540).

Almost surely, 2^2545380773 is an apocalyptic number.

It is an amenable number.

2545380773 is a deficient number, since it is larger than the sum of its proper divisors (254419867).

2545380773 is a wasteful number, since it uses less digits than its factorization.

2545380773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14548.

The product of its (nonzero) digits is 705600, while the sum is 44.

The square root of 2545380773 is about 50451.7667976058. The cubic root of 2545380773 is about 1365.3717715184.

The spelling of 2545380773 in words is "two billion, five hundred forty-five million, three hundred eighty thousand, seven hundred seventy-three".