2255157421 has 16 divisors (see below), whose sum is σ = 2556201600. Its totient is φ = 1970740800.

The previous prime is 2255157397. The next prime is 2255157427. The reversal of 2255157421 is 1247515522.

It is a cyclic number.

It is not a de Polignac number, because 2255157421 - 2¹¹ = 2255155373 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 (2255157427) 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, 57616 + ... + 88486.

It is an arithmetic number, because the mean of its divisors is an integer number (159762600).

Almost surely, 2^2255157421 is an apocalyptic number.

It is an amenable number.

2255157421 is a deficient number, since it is larger than the sum of its proper divisors (301044179).

2255157421 is a wasteful number, since it uses less digits than its factorization.

2255157421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31140.

The product of its digits is 28000, while the sum is 34.

The square root of 2255157421 is about 47488.4977757772. The cubic root of 2255157421 is about 1311.3711380350.

The spelling of 2255157421 in words is "two billion, two hundred fifty-five million, one hundred fifty-seven thousand, four hundred twenty-one".