51350330 has 16 divisors (see below), whose sum is σ = 93470760. Its totient is φ = 20308992.

The previous prime is 51350311. The next prime is 51350363. The reversal of 51350330 is 3305315.

It can be written as a sum of positive squares in 4 ways, for example, as 45738169 + 5612161 = 6763^2 + 2369^2 .

It is a super-2 number, since 2×51350330² = 5273712782217800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27959 + ... + 29738.

Almost surely, 2^51350330 is an apocalyptic number.

51350330 is a deficient number, since it is larger than the sum of its proper divisors (42120430).

51350330 is a wasteful number, since it uses less digits than its factorization.

51350330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57793.

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 51350330 is about 7165.9144566482. The cubic root of 51350330 is about 371.6901734838.

Adding to 51350330 its reverse (3305315), we get a palindrome (54655645).

The spelling of 51350330 in words is "fifty-one million, three hundred fifty thousand, three hundred thirty".