51340270 has 16 divisors (see below), whose sum is σ = 92494080. Its totient is φ = 20517984.

The previous prime is 51340259. The next prime is 51340319. The reversal of 51340270 is 7204315.

It is a congruent number.

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, 21244 + ... + 23536.

It is an arithmetic number, because the mean of its divisors is an integer number (5780880).

Almost surely, 2^51340270 is an apocalyptic number.

51340270 is a deficient number, since it is larger than the sum of its proper divisors (41153810).

51340270 is a wasteful number, since it uses less digits than its factorization.

51340270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 51340270 is about 7165.2124881262. The cubic root of 51340270 is about 371.6658993954.

Adding to 51340270 its reverse (7204315), we get a palindrome (58544585).

The spelling of 51340270 in words is "fifty-one million, three hundred forty thousand, two hundred seventy".