2545607431 has 4 divisors (see below), whose sum is σ = 2565651712. Its totient is φ = 2525563152.

The previous prime is 2545607429. The next prime is 2545607453. The reversal of 2545607431 is 1347065452.

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 2545607431 - 2¹ = 2545607429 is a prime.

It is a super-2 number, since 2×2545607431² = 12960234385524839522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545607401) 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, 10021950 + ... + 10022203.

It is an arithmetic number, because the mean of its divisors is an integer number (641412928).

Almost surely, 2^2545607431 is an apocalyptic number.

2545607431 is a deficient number, since it is larger than the sum of its proper divisors (20044281).

2545607431 is a wasteful number, since it uses less digits than its factorization.

2545607431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20044280.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 2545607431 is about 50454.0130316707. The cubic root of 2545607431 is about 1365.4122976423.

The spelling of 2545607431 in words is "two billion, five hundred forty-five million, six hundred seven thousand, four hundred thirty-one".