2545851278 has 8 divisors (see below), whose sum is σ = 3984810768. Its totient is φ = 1217581024.

The previous prime is 2545851277. The next prime is 2545851283. The reversal of 2545851278 is 8721585452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545851277) 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, 27672251 + ... + 27672342.

It is an arithmetic number, because the mean of its divisors is an integer number (498101346).

Almost surely, 2^2545851278 is an apocalyptic number.

2545851278 is a deficient number, since it is larger than the sum of its proper divisors (1438959490).

2545851278 is a wasteful number, since it uses less digits than its factorization.

2545851278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55344618.

The product of its digits is 896000, while the sum is 47.

The square root of 2545851278 is about 50456.4295011052. The cubic root of 2545851278 is about 1365.4558944485.

The spelling of 2545851278 in words is "two billion, five hundred forty-five million, eight hundred fifty-one thousand, two hundred seventy-eight".