51470330 has 16 divisors (see below), whose sum is σ = 95151240. Its totient is φ = 20031552.

The previous prime is 51470303. The next prime is 51470351. The reversal of 51470330 is 3307415.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 51423241 + 47089 = 7171^2 + 217^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51470296 and 51470305.

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, 69185 + ... + 69924.

Almost surely, 2^51470330 is an apocalyptic number.

51470330 is a deficient number, since it is larger than the sum of its proper divisors (43680910).

51470330 is a wasteful number, since it uses less digits than its factorization.

51470330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139153.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 51470330 is about 7174.2825425265. The cubic root of 51470330 is about 371.9794810820.

Adding to 51470330 its reverse (3307415), we get a palindrome (54777745).

The spelling of 51470330 in words is "fifty-one million, four hundred seventy thousand, three hundred thirty".