2478225151 has 4 divisors (see below), whose sum is σ = 2481032632. Its totient is φ = 2475417672.

The previous prime is 2478225143. The next prime is 2478225209. The reversal of 2478225151 is 1515228742.

It is a happy number.

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 2478225151 - 2³ = 2478225143 is a prime.

It is a super-2 number, since 2×2478225151² = 12283199798097945602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2478225151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478225121) 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, 1402416 + ... + 1404181.

It is an arithmetic number, because the mean of its divisors is an integer number (620258158).

Almost surely, 2^2478225151 is an apocalyptic number.

2478225151 is a deficient number, since it is larger than the sum of its proper divisors (2807481).

2478225151 is an equidigital number, since it uses as much as digits as its factorization.

2478225151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807480.

The product of its digits is 44800, while the sum is 37.

The square root of 2478225151 is about 49781.7752897584. The cubic root of 2478225151 is about 1353.2569101462.

The spelling of 2478225151 in words is "two billion, four hundred seventy-eight million, two hundred twenty-five thousand, one hundred fifty-one".