2545481823 has 4 divisors (see below), whose sum is σ = 3393975768. Its totient is φ = 1696987880.

The previous prime is 2545481803. The next prime is 2545481849. The reversal of 2545481823 is 3281845452.

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 2545481823 - 2²⁰ = 2544433247 is a prime.

It is a super-2 number, since 2×2545481823² = 12958955422446806658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545481803) 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, 424246968 + ... + 424246973.

It is an arithmetic number, because the mean of its divisors is an integer number (848493942).

Almost surely, 2^2545481823 is an apocalyptic number.

2545481823 is a deficient number, since it is larger than the sum of its proper divisors (848493945).

2545481823 is an equidigital number, since it uses as much as digits as its factorization.

2545481823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848493944.

The product of its digits is 307200, while the sum is 42.

The square root of 2545481823 is about 50452.7682392156. The cubic root of 2545481823 is about 1365.3898394100.

The spelling of 2545481823 in words is "two billion, five hundred forty-five million, four hundred eighty-one thousand, eight hundred twenty-three".