2545923158 has 32 divisors (see below), whose sum is σ = 4006669536. Its totient is φ = 1211977728.

The previous prime is 2545923139. The next prime is 2545923169. The reversal of 2545923158 is 8513295452.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2207510 + ... + 2208662.

It is an arithmetic number, because the mean of its divisors is an integer number (125208423).

Almost surely, 2^2545923158 is an apocalyptic number.

2545923158 is a deficient number, since it is larger than the sum of its proper divisors (1460746378).

2545923158 is a wasteful number, since it uses less digits than its factorization.

2545923158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808.

The product of its digits is 432000, while the sum is 44.

The square root of 2545923158 is about 50457.1417938036. The cubic root of 2545923158 is about 1365.4687451659.

The spelling of 2545923158 in words is "two billion, five hundred forty-five million, nine hundred twenty-three thousand, one hundred fifty-eight".