2279940551 has 16 divisors (see below), whose sum is σ = 2660966400. Its totient is φ = 1952659800.

The previous prime is 2279940497. The next prime is 2279940583. The reversal of 2279940551 is 1550499722.

2279940551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2279940551 - 2¹⁸ = 2279678407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279948551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 667490 + ... + 670896.

It is an arithmetic number, because the mean of its divisors is an integer number (166310400).

Almost surely, 2^2279940551 is an apocalyptic number.

2279940551 is a deficient number, since it is larger than the sum of its proper divisors (381025849).

2279940551 is an equidigital number, since it uses as much as digits as its factorization.

2279940551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5379 (or 5365 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 2279940551 is about 47748.7230300455. The cubic root of 2279940551 is about 1316.1574336326.

The spelling of 2279940551 in words is "two billion, two hundred seventy-nine million, nine hundred forty thousand, five hundred fifty-one".