2742248655 has 32 divisors (see below), whose sum is σ = 4885401600. Its totient is φ = 1459444896.

The previous prime is 2742248653. The next prime is 2742248657. The reversal of 2742248655 is 5568422472.

It is an interprime number because it is at equal distance from previous prime (2742248653) and next prime (2742248657).

It is not a de Polignac number, because 2742248655 - 2¹ = 2742248653 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2742248655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2742248653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43462 + ... + 85868.

It is an arithmetic number, because the mean of its divisors is an integer number (152668800).

Almost surely, 2^2742248655 is an apocalyptic number.

2742248655 is a deficient number, since it is larger than the sum of its proper divisors (2143152945).

2742248655 is a wasteful number, since it uses less digits than its factorization.

2742248655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42900 (or 42894 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 45.

The square root of 2742248655 is about 52366.4840809463. The cubic root of 2742248655 is about 1399.7020888218.

The spelling of 2742248655 in words is "two billion, seven hundred forty-two million, two hundred forty-eight thousand, six hundred fifty-five".