51622673 has 4 divisors (see below), whose sum is σ = 52123968. Its totient is φ = 51121380.

The previous prime is 51622667. The next prime is 51622679. The reversal of 51622673 is 37622615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (51622667) and next prime (51622679).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51622673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51622679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250493 + ... + 250698.

It is an arithmetic number, because the mean of its divisors is an integer number (13030992).

Almost surely, 2^51622673 is an apocalyptic number.

It is an amenable number.

51622673 is a deficient number, since it is larger than the sum of its proper divisors (501295).

51622673 is a wasteful number, since it uses less digits than its factorization.

51622673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501294.

The product of its digits is 15120, while the sum is 32.

The square root of 51622673 is about 7184.8919964047. The cubic root of 51622673 is about 372.3461172412.

The spelling of 51622673 in words is "fifty-one million, six hundred twenty-two thousand, six hundred seventy-three".