51634071 has 8 divisors (see below), whose sum is σ = 76494960. Its totient is φ = 34422696.

The previous prime is 51634061. The next prime is 51634087. The reversal of 51634071 is 17043615.

It is not a de Polignac number, because 51634071 - 2⁷ = 51633943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1912373 = 51634071 / (5 + 1 + 6 + 3 + 4 + 0 + 7 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51634061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956160 + ... + 956213.

It is an arithmetic number, because the mean of its divisors is an integer number (9561870).

Almost surely, 2^51634071 is an apocalyptic number.

51634071 is a deficient number, since it is larger than the sum of its proper divisors (24860889).

51634071 is a wasteful number, since it uses less digits than its factorization.

51634071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912382 (or 1912376 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 51634071 is about 7185.6851447861. The cubic root of 51634071 is about 372.3735192107.

Adding to 51634071 its reverse (17043615), we get a palindrome (68677686).

The spelling of 51634071 in words is "fifty-one million, six hundred thirty-four thousand, seventy-one".