2251189515 has 16 divisors (see below), whose sum is σ = 3758508288. Its totient is φ = 1148432736.

The previous prime is 2251189489. The next prime is 2251189537. The reversal of 2251189515 is 5159811522.

It is not a de Polignac number, because 2251189515 - 2⁷ = 2251189387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3262249 + ... + 3262938.

It is an arithmetic number, because the mean of its divisors is an integer number (234906768).

Almost surely, 2^2251189515 is an apocalyptic number.

2251189515 is a deficient number, since it is larger than the sum of its proper divisors (1507318773).

2251189515 is a wasteful number, since it uses less digits than its factorization.

2251189515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6525218.

The product of its digits is 36000, while the sum is 39.

The square root of 2251189515 is about 47446.7018347956. The cubic root of 2251189515 is about 1310.6015757709.

The spelling of 2251189515 in words is "two billion, two hundred fifty-one million, one hundred eighty-nine thousand, five hundred fifteen".