2251513 has 8 divisors (see below), whose sum is σ = 2471040. Its totient is φ = 2034480.

The previous prime is 2251511. The next prime is 2251517. The reversal of 2251513 is 3151522.

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 2251513 - 2¹ = 2251511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2251511) 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, 1648 + ... + 2686.

It is an arithmetic number, because the mean of its divisors is an integer number (308880).

2^2251513 is an apocalyptic number.

It is an amenable number.

2251513 is a deficient number, since it is larger than the sum of its proper divisors (219527).

2251513 is a wasteful number, since it uses less digits than its factorization.

2251513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247.

The product of its digits is 300, while the sum is 19.

The square root of 2251513 is about 1500.5042485778. The cubic root of 2251513 is about 131.0664348458.

Subtracting 2251513 from its reverse (3151522), we obtain a palindrome (900009).

The spelling of 2251513 in words is "two million, two hundred fifty-one thousand, five hundred thirteen".