51810034 has 4 divisors (see below), whose sum is σ = 77715054. Its totient is φ = 25905016.

The previous prime is 51810023. The next prime is 51810041. The reversal of 51810034 is 43001815.

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

It can be written as a sum of positive squares in only one way, i.e., 51796809 + 13225 = 7197^2 + 115^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51809987 and 51810014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12952507 + ... + 12952510.

Almost surely, 2^51810034 is an apocalyptic number.

51810034 is a deficient number, since it is larger than the sum of its proper divisors (25905020).

51810034 is a wasteful number, since it uses less digits than its factorization.

51810034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25905019.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 51810034 is about 7197.9187269655. The cubic root of 51810034 is about 372.7960417052.

Adding to 51810034 its reverse (43001815), we get a palindrome (94811849).

The spelling of 51810034 in words is "fifty-one million, eight hundred ten thousand, thirty-four".