2493951655 has 16 divisors (see below), whose sum is σ = 3224450880. Its totient is φ = 1840831488.

The previous prime is 2493951583. The next prime is 2493951659. The reversal of 2493951655 is 5561593942.

It is a cyclic number.

It is not a de Polignac number, because 2493951655 - 2⁹ = 2493951143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2493951599 and 2493951608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2493951659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155031 + ... + 170359.

It is an arithmetic number, because the mean of its divisors is an integer number (201528180).

Almost surely, 2^2493951655 is an apocalyptic number.

2493951655 is a deficient number, since it is larger than the sum of its proper divisors (730499225).

2493951655 is a wasteful number, since it uses less digits than its factorization.

2493951655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17850.

The product of its digits is 1458000, while the sum is 49.

The square root of 2493951655 is about 49939.4799232030. The cubic root of 2493951655 is about 1356.1134088268.

The spelling of 2493951655 in words is "two billion, four hundred ninety-three million, nine hundred fifty-one thousand, six hundred fifty-five".