2451642655 has 16 divisors (see below), whose sum is σ = 3667912704. Its totient is φ = 1528296480.

The previous prime is 2451642653. The next prime is 2451642673. The reversal of 2451642655 is 5562461542.

It is a happy number.

It is not a de Polignac number, because 2451642655 - 2¹ = 2451642653 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 (2451642653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3183567 + ... + 3184336.

It is an arithmetic number, because the mean of its divisors is an integer number (229244544).

Almost surely, 2^2451642655 is an apocalyptic number.

2451642655 is a deficient number, since it is larger than the sum of its proper divisors (1216270049).

2451642655 is a wasteful number, since it uses less digits than its factorization.

2451642655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6367926.

The product of its digits is 288000, while the sum is 40.

The square root of 2451642655 is about 49514.0652239341. The cubic root of 2451642655 is about 1348.4009700332.

The spelling of 2451642655 in words is "two billion, four hundred fifty-one million, six hundred forty-two thousand, six hundred fifty-five".