2545500457 has 8 divisors (see below), whose sum is σ = 2760973992. Its totient is φ = 2337331200.

The previous prime is 2545500379. The next prime is 2545500487. The reversal of 2545500457 is 7540055452.

It can be written as a sum of positive squares in 4 ways, for example, as 2920681 + 2542579776 = 1709^2 + 50424^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2545500457 - 2²³ = 2537111849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545500487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1825344 + ... + 1826737.

It is an arithmetic number, because the mean of its divisors is an integer number (345121749).

Almost surely, 2^2545500457 is an apocalyptic number.

It is an amenable number.

2545500457 is a deficient number, since it is larger than the sum of its proper divisors (215473535).

2545500457 is a wasteful number, since it uses less digits than its factorization.

2545500457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652139.

The product of its (nonzero) digits is 140000, while the sum is 37.

The square root of 2545500457 is about 50452.9529066436. The cubic root of 2545500457 is about 1365.3931711449.

The spelling of 2545500457 in words is "two billion, five hundred forty-five million, five hundred thousand, four hundred fifty-seven".