2251554515 has 8 divisors (see below), whose sum is σ = 3087846240. Its totient is φ = 1543923072.

The previous prime is 2251554499. The next prime is 2251554527. The reversal of 2251554515 is 5154551522.

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 2251554515 - 2⁴ = 2251554499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 64330129 = 2251554515 / (2 + 2 + 5 + 1 + 5 + 5 + 4 + 5 + 1 + 5).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32165030 + ... + 32165099.

It is an arithmetic number, because the mean of its divisors is an integer number (385980780).

Almost surely, 2^2251554515 is an apocalyptic number.

2251554515 is a deficient number, since it is larger than the sum of its proper divisors (836291725).

2251554515 is an equidigital number, since it uses as much as digits as its factorization.

2251554515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64330141.

The product of its digits is 50000, while the sum is 35.

The square root of 2251554515 is about 47450.5481001010. The cubic root of 2251554515 is about 1310.6724040627.

The spelling of 2251554515 in words is "two billion, two hundred fifty-one million, five hundred fifty-four thousand, five hundred fifteen".