2251321510 has 16 divisors (see below), whose sum is σ = 4118812272. Its totient is φ = 885765600.

The previous prime is 2251321453. The next prime is 2251321549. The reversal of 2251321510 is 151231522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1844736 + ... + 1845955.

It is an arithmetic number, because the mean of its divisors is an integer number (257425767).

Almost surely, 2^2251321510 is an apocalyptic number.

2251321510 is a deficient number, since it is larger than the sum of its proper divisors (1867490762).

2251321510 is a wasteful number, since it uses less digits than its factorization.

2251321510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690759.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2251321510 is about 47448.0927962337. The cubic root of 2251321510 is about 1310.6271902994.

It can be divided in two parts, 2251 and 321510, that added together give a square (323761 = 569²).

The spelling of 2251321510 in words is "two billion, two hundred fifty-one million, three hundred twenty-one thousand, five hundred ten".