2547902423 has 4 divisors (see below), whose sum is σ = 2779529928. Its totient is φ = 2316274920.

The previous prime is 2547902419. The next prime is 2547902449. The reversal of 2547902423 is 3242097452.

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 2547902423 - 2² = 2547902419 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 (2547902453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115813736 + ... + 115813757.

It is an arithmetic number, because the mean of its divisors is an integer number (694882482).

Almost surely, 2^2547902423 is an apocalyptic number.

2547902423 is a deficient number, since it is larger than the sum of its proper divisors (231627505).

2547902423 is a wasteful number, since it uses less digits than its factorization.

2547902423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231627504.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 2547902423 is about 50476.7513118663. The cubic root of 2547902423 is about 1365.8225034778.

Adding to 2547902423 its reverse (3242097452), we get a palindrome (5789999875).

The spelling of 2547902423 in words is "two billion, five hundred forty-seven million, nine hundred two thousand, four hundred twenty-three".