51254806 has 4 divisors (see below), whose sum is σ = 76882212. Its totient is φ = 25627402.

The previous prime is 51254771. The next prime is 51254821. The reversal of 51254806 is 60845215.

51254806 = T₅₈₄₄ + T₅₈₄₅ + T₅₈₄₆.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12813700 + ... + 12813703.

It is an arithmetic number, because the mean of its divisors is an integer number (19220553).

Almost surely, 2^51254806 is an apocalyptic number.

51254806 is the 5846-th centered triangular number.

51254806 is a deficient number, since it is larger than the sum of its proper divisors (25627406).

51254806 is a wasteful number, since it uses less digits than its factorization.

51254806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25627405.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 51254806 is about 7159.2461893694. The cubic root of 51254806 is about 371.4595526285.

The spelling of 51254806 in words is "fifty-one million, two hundred fifty-four thousand, eight hundred six".