51634465 has 8 divisors (see below), whose sum is σ = 62209728. Its totient is φ = 41142000.

The previous prime is 51634463. The next prime is 51634477. The reversal of 51634465 is 56443615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51634465 - 2¹ = 51634463 is a prime.

It is a super-2 number, since 2×51634465² = 5332235951672450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51634465.

It is not an unprimeable number, because it can be changed into a prime (51634463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19317 + ... + 21826.

It is an arithmetic number, because the mean of its divisors is an integer number (7776216).

Almost surely, 2^51634465 is an apocalyptic number.

It is an amenable number.

51634465 is a deficient number, since it is larger than the sum of its proper divisors (10575263).

51634465 is a wasteful number, since it uses less digits than its factorization.

51634465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41399.

The product of its digits is 43200, while the sum is 34.

The square root of 51634465 is about 7185.7125603520. The cubic root of 51634465 is about 372.3744663553.

The spelling of 51634465 in words is "fifty-one million, six hundred thirty-four thousand, four hundred sixty-five".