2251262516 has 12 divisors (see below), whose sum is σ = 3952298532. Its totient is φ = 1122034368.

The previous prime is 2251262477. The next prime is 2251262527. The reversal of 2251262516 is 6152621522.

It can be written as a sum of positive squares in 2 ways, for example, as 803155600 + 1448106916 = 28340^2 + 38054^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897815 + ... + 900318.

It is an arithmetic number, because the mean of its divisors is an integer number (329358211).

Almost surely, 2^2251262516 is an apocalyptic number.

It is an amenable number.

2251262516 is a deficient number, since it is larger than the sum of its proper divisors (1701036016).

2251262516 is a wasteful number, since it uses less digits than its factorization.

2251262516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798450 (or 1798448 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 2251262516 is about 47447.4711233381. The cubic root of 2251262516 is about 1310.6157422357.

The spelling of 2251262516 in words is "two billion, two hundred fifty-one million, two hundred sixty-two thousand, five hundred sixteen".