2545272343 has 4 divisors (see below), whose sum is σ = 2548582960. Its totient is φ = 2541961728.

The previous prime is 2545272311. The next prime is 2545272403. The reversal of 2545272343 is 3432725452.

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 2545272343 - 2⁵ = 2545272311 is a prime.

It is a super-2 number, since 2×2545272343² = 12956822600081419298, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545272043) 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, 1654155 + ... + 1655692.

It is an arithmetic number, because the mean of its divisors is an integer number (637145740).

Almost surely, 2^2545272343 is an apocalyptic number.

2545272343 is a deficient number, since it is larger than the sum of its proper divisors (3310617).

2545272343 is an equidigital number, since it uses as much as digits as its factorization.

2545272343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310616.

The product of its digits is 201600, while the sum is 37.

The square root of 2545272343 is about 50450.6921954496. The cubic root of 2545272343 is about 1365.3523835398.

Adding to 2545272343 its reverse (3432725452), we get a palindrome (5977997795).

The spelling of 2545272343 in words is "two billion, five hundred forty-five million, two hundred seventy-two thousand, three hundred forty-three".