51454246 has 4 divisors (see below), whose sum is σ = 77181372. Its totient is φ = 25727122.

The previous prime is 51454229. The next prime is 51454253. The reversal of 51454246 is 64245415.

It is a happy number.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 12863560 + ... + 12863563.

It is an arithmetic number, because the mean of its divisors is an integer number (19295343).

Almost surely, 2^51454246 is an apocalyptic number.

51454246 is a deficient number, since it is larger than the sum of its proper divisors (25727126).

51454246 is a wasteful number, since it uses less digits than its factorization.

51454246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25727125.

The product of its digits is 19200, while the sum is 31.

The square root of 51454246 is about 7173.1615066162. The cubic root of 51454246 is about 371.9407303345.

The spelling of 51454246 in words is "fifty-one million, four hundred fifty-four thousand, two hundred forty-six".