641502255 has 16 divisors (see below), whose sum is σ = 1026728064. Its totient is φ = 342026400.

The previous prime is 641502247. The next prime is 641502271. The reversal of 641502255 is 552205146.

641502255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641502255 - 2³ = 641502247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71532 + ... + 79998.

It is an arithmetic number, because the mean of its divisors is an integer number (64170504).

Almost surely, 2^641502255 is an apocalyptic number.

641502255 is a deficient number, since it is larger than the sum of its proper divisors (385225809).

641502255 is a wasteful number, since it uses less digits than its factorization.

641502255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13526.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 641502255 is about 25327.8948000026. The cubic root of 641502255 is about 862.4476221081.

The spelling of 641502255 in words is "six hundred forty-one million, five hundred two thousand, two hundred fifty-five".