51150445 has 4 divisors (see below), whose sum is σ = 61380540. Its totient is φ = 40920352.

The previous prime is 51150439. The next prime is 51150469. The reversal of 51150445 is 54405115.

It is a happy number.

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 8874441 + 42276004 = 2979^2 + 6502^2 .

It is a cyclic number.

It is not a de Polignac number, because 51150445 - 2¹⁷ = 51019373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5115040 + ... + 5115049.

It is an arithmetic number, because the mean of its divisors is an integer number (15345135).

Almost surely, 2^51150445 is an apocalyptic number.

It is an amenable number.

51150445 is a deficient number, since it is larger than the sum of its proper divisors (10230095).

51150445 is a wasteful number, since it uses less digits than its factorization.

51150445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10230094.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 51150445 is about 7151.9539288225. The cubic root of 51150445 is about 371.2072690940.

The spelling of 51150445 in words is "fifty-one million, one hundred fifty thousand, four hundred forty-five".