51673955 has 4 divisors (see below), whose sum is σ = 62008752. Its totient is φ = 41339160.

The previous prime is 51673943. The next prime is 51673991. The reversal of 51673955 is 55937615.

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

It is not a de Polignac number, because 51673955 - 2¹⁰ = 51672931 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5167391 + ... + 5167400.

It is an arithmetic number, because the mean of its divisors is an integer number (15502188).

Almost surely, 2^51673955 is an apocalyptic number.

51673955 is a deficient number, since it is larger than the sum of its proper divisors (10334797).

51673955 is a wasteful number, since it uses less digits than its factorization.

51673955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10334796.

The product of its digits is 141750, while the sum is 41.

The square root of 51673955 is about 7188.4598489523. The cubic root of 51673955 is about 372.4693727352.

The spelling of 51673955 in words is "fifty-one million, six hundred seventy-three thousand, nine hundred fifty-five".