51351934 has 32 divisors (see below), whose sum is σ = 85349376. Its totient is φ = 23064960.

The previous prime is 51351931. The next prime is 51351943. The reversal of 51351934 is 43915315.

It is a happy number.

It is a super-2 number, since 2×51351934² = 5274042251080712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 51351896 and 51351905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51351931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87189 + ... + 87775.

It is an arithmetic number, because the mean of its divisors is an integer number (2667168).

Almost surely, 2^51351934 is an apocalyptic number.

51351934 is a deficient number, since it is larger than the sum of its proper divisors (33997442).

51351934 is a wasteful number, since it uses less digits than its factorization.

51351934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720.

The product of its digits is 8100, while the sum is 31.

The square root of 51351934 is about 7166.0263744979. The cubic root of 51351934 is about 371.6940435325.

The spelling of 51351934 in words is "fifty-one million, three hundred fifty-one thousand, nine hundred thirty-four".