2251644013 has 8 divisors (see below), whose sum is σ = 2334084480. Its totient is φ = 2169523440.

The previous prime is 2251644011. The next prime is 2251644023. The reversal of 2251644013 is 3104461522.

2251644013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2251644013 - 2¹ = 2251644011 is a prime.

It is a super-2 number, since 2×2251644013² = 10139801522557488338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251644011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65593 + ... + 93838.

It is an arithmetic number, because the mean of its divisors is an integer number (291760560).

Almost surely, 2^2251644013 is an apocalyptic number.

It is an amenable number.

2251644013 is a deficient number, since it is larger than the sum of its proper divisors (82440467).

2251644013 is a wasteful number, since it uses less digits than its factorization.

2251644013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159947.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2251644013 is about 47451.4911567592. The cubic root of 2251644013 is about 1310.6897699913.

The spelling of 2251644013 in words is "two billion, two hundred fifty-one million, six hundred forty-four thousand, thirteen".