2001255264 has 72 divisors (see below), whose sum is σ = 5829910632. Its totient is φ = 650810880.

The previous prime is 2001255257. The next prime is 2001255271. The reversal of 2001255264 is 4625521002.

2001255264 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2001255257) and next prime (2001255271).

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72934 + ... + 96549.

It is an arithmetic number, because the mean of its divisors is an integer number (80970981).

Almost surely, 2^2001255264 is an apocalyptic number.

2001255264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2001255264 is an abundant number, since it is smaller than the sum of its proper divisors (3828655368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001255264 is a wasteful number, since it uses less digits than its factorization.

2001255264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169540 (or 169529 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2001255264 is about 44735.3916267646. The cubic root of 2001255264 is about 1260.1845836913.

Adding to 2001255264 its reverse (4625521002), we get a palindrome (6626776266).

The spelling of 2001255264 in words is "two billion, one million, two hundred fifty-five thousand, two hundred sixty-four".