5651511051 has 4 divisors (see below), whose sum is σ = 7535348072. Its totient is φ = 3767674032.

The previous prime is 5651511043. The next prime is 5651511071. The reversal of 5651511051 is 1501151565.

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

It is not a de Polignac number, because 5651511051 - 2³ = 5651511043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5651511011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941918506 + ... + 941918511.

It is an arithmetic number, because the mean of its divisors is an integer number (1883837018).

Almost surely, 2^5651511051 is an apocalyptic number.

5651511051 is a deficient number, since it is larger than the sum of its proper divisors (1883837021).

5651511051 is a wasteful number, since it uses less digits than its factorization.

5651511051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883837020.

The product of its (nonzero) digits is 3750, while the sum is 30.

The square root of 5651511051 is about 75176.5325816508. The cubic root of 5651511051 is about 1781.2362588685.

The spelling of 5651511051 in words is "five billion, six hundred fifty-one million, five hundred eleven thousand, fifty-one".