2525551779 has 4 divisors (see below), whose sum is σ = 3367402376. Its totient is φ = 1683701184.

The previous prime is 2525551757. The next prime is 2525551871. The reversal of 2525551779 is 9771555252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2525551779 - 2¹¹ = 2525549731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2525551729) 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, 420925294 + ... + 420925299.

It is an arithmetic number, because the mean of its divisors is an integer number (841850594).

Almost surely, 2^2525551779 is an apocalyptic number.

2525551779 is a deficient number, since it is larger than the sum of its proper divisors (841850597).

2525551779 is an equidigital number, since it uses as much as digits as its factorization.

2525551779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841850596.

The product of its digits is 1102500, while the sum is 48.

The square root of 2525551779 is about 50254.8682119454. The cubic root of 2525551779 is about 1361.8170239638.

The spelling of 2525551779 in words is "two billion, five hundred twenty-five million, five hundred fifty-one thousand, seven hundred seventy-nine".