51625306 has 4 divisors (see below), whose sum is σ = 77437962. Its totient is φ = 25812652.

The previous prime is 51625297. The next prime is 51625391. The reversal of 51625306 is 60352615.

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

It can be written as a sum of positive squares in only one way, i.e., 27468081 + 24157225 = 5241^2 + 4915^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12906325 + ... + 12906328.

Almost surely, 2^51625306 is an apocalyptic number.

51625306 is a deficient number, since it is larger than the sum of its proper divisors (25812656).

51625306 is a wasteful number, since it uses less digits than its factorization.

51625306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25812655.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 51625306 is about 7185.0752257718. The cubic root of 51625306 is about 372.3524476034.

The spelling of 51625306 in words is "fifty-one million, six hundred twenty-five thousand, three hundred six".