2258551491 has 8 divisors (see below), whose sum is σ = 3441602304. Its totient is φ = 1290600840.

The previous prime is 2258551459. The next prime is 2258551499. The reversal of 2258551491 is 1941558522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2258551491 - 2⁵ = 2258551459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2258551499) 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, 53775015 + ... + 53775056.

It is an arithmetic number, because the mean of its divisors is an integer number (430200288).

Almost surely, 2^2258551491 is an apocalyptic number.

2258551491 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2258551491 is a deficient number, since it is larger than the sum of its proper divisors (1183050813).

2258551491 is a wasteful number, since it uses less digits than its factorization.

2258551491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107550081.

The product of its digits is 144000, while the sum is 42.

The square root of 2258551491 is about 47524.2200462038. The cubic root of 2258551491 is about 1312.0286907130.

The spelling of 2258551491 in words is "two billion, two hundred fifty-eight million, five hundred fifty-one thousand, four hundred ninety-one".