51150779 has 4 divisors (see below), whose sum is σ = 52340376. Its totient is φ = 49961184.

The previous prime is 51150769. The next prime is 51150791. The reversal of 51150779 is 97705115.

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

It is a de Polignac number, because none of the positive numbers 2^k-51150779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51150709) 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, 594734 + ... + 594819.

It is an arithmetic number, because the mean of its divisors is an integer number (13085094).

Almost surely, 2^51150779 is an apocalyptic number.

51150779 is a deficient number, since it is larger than the sum of its proper divisors (1189597).

51150779 is a wasteful number, since it uses less digits than its factorization.

51150779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189596.

The product of its (nonzero) digits is 11025, while the sum is 35.

The square root of 51150779 is about 7151.9772790467. The cubic root of 51150779 is about 371.2080770567.

The spelling of 51150779 in words is "fifty-one million, one hundred fifty thousand, seven hundred seventy-nine".