2545578423 has 24 divisors (see below), whose sum is σ = 3859914240. Its totient is φ = 1614462480.

The previous prime is 2545578397. The next prime is 2545578449. The reversal of 2545578423 is 3248755452.

2545578423 is a `hidden beast` number, since 2 + 54 + 5 + 578 + 4 + 23 = 666.

It is an interprime number because it is at equal distance from previous prime (2545578397) and next prime (2545578449).

It is not a de Polignac number, because 2545578423 - 2⁵ = 2545578391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545578463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60861 + ... + 93782.

It is an arithmetic number, because the mean of its divisors is an integer number (160829760).

Almost surely, 2^2545578423 is an apocalyptic number.

2545578423 is a deficient number, since it is larger than the sum of its proper divisors (1314335817).

2545578423 is a wasteful number, since it uses less digits than its factorization.

2545578423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154739 (or 154736 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 45.

The square root of 2545578423 is about 50453.7255611516. The cubic root of 2545578423 is about 1365.4071111879.

The spelling of 2545578423 in words is "two billion, five hundred forty-five million, five hundred seventy-eight thousand, four hundred twenty-three".