2340505551 has 4 divisors (see below), whose sum is σ = 3120674072. Its totient is φ = 1560337032.

The previous prime is 2340505547. The next prime is 2340505561. The reversal of 2340505551 is 1555050432.

It is a happy number.

2340505551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2340505551 - 2² = 2340505547 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 (2340505511) 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, 390084256 + ... + 390084261.

It is an arithmetic number, because the mean of its divisors is an integer number (780168518).

Almost surely, 2^2340505551 is an apocalyptic number.

2340505551 is a deficient number, since it is larger than the sum of its proper divisors (780168521).

2340505551 is an equidigital number, since it uses as much as digits as its factorization.

2340505551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780168520.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 2340505551 is about 48378.7716979255. The cubic root of 2340505551 is about 1327.7099966058.

Adding to 2340505551 its reverse (1555050432), we get a palindrome (3895555983).

The spelling of 2340505551 in words is "two billion, three hundred forty million, five hundred five thousand, five hundred fifty-one".