2549809151 has 4 divisors (see below), whose sum is σ = 2587866072. Its totient is φ = 2511752232.

The previous prime is 2549809133. The next prime is 2549809159. The reversal of 2549809151 is 1519089452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2549809151 - 2¹⁴ = 2549792767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2549809159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19028360 + ... + 19028493.

It is an arithmetic number, because the mean of its divisors is an integer number (646966518).

Almost surely, 2^2549809151 is an apocalyptic number.

2549809151 is a deficient number, since it is larger than the sum of its proper divisors (38056921).

2549809151 is an equidigital number, since it uses as much as digits as its factorization.

2549809151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38056920.

The product of its (nonzero) digits is 129600, while the sum is 44.

The square root of 2549809151 is about 50495.6349697674. The cubic root of 2549809151 is about 1366.1631238804.

The spelling of 2549809151 in words is "two billion, five hundred forty-nine million, eight hundred nine thousand, one hundred fifty-one".