51205246 has 8 divisors (see below), whose sum is σ = 76919544. Its totient is φ = 25565400.

The previous prime is 51205229. The next prime is 51205249. The reversal of 51205246 is 64250215.

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

It is a self number, because there is not a number n which added to its sum of digits gives 51205246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51205249) 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, 16860 + ... + 19663.

It is an arithmetic number, because the mean of its divisors is an integer number (9614943).

Almost surely, 2^51205246 is an apocalyptic number.

51205246 is a deficient number, since it is larger than the sum of its proper divisors (25714298).

51205246 is a wasteful number, since it uses less digits than its factorization.

51205246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37226.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 51205246 is about 7155.7840940040. The cubic root of 51205246 is about 371.3397884304.

The spelling of 51205246 in words is "fifty-one million, two hundred five thousand, two hundred forty-six".