51150697 has 4 divisors (see below), whose sum is σ = 55085380. Its totient is φ = 47216016.

The previous prime is 51150691. The next prime is 51150709. The reversal of 51150697 is 79605115.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5669161 + 45481536 = 2381^2 + 6744^2 .

It is a cyclic number.

It is not a de Polignac number, because 51150697 - 2¹¹ = 51148649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51150691) 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, 1967322 + ... + 1967347.

It is an arithmetic number, because the mean of its divisors is an integer number (13771345).

Almost surely, 2^51150697 is an apocalyptic number.

It is an amenable number.

51150697 is a deficient number, since it is larger than the sum of its proper divisors (3934683).

51150697 is a wasteful number, since it uses less digits than its factorization.

51150697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934682.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 51150697 is about 7151.9715463640. The cubic root of 51150697 is about 371.2078786949.

The spelling of 51150697 in words is "fifty-one million, one hundred fifty thousand, six hundred ninety-seven".