51825207 has 8 divisors (see below), whose sum is σ = 78971776. Its totient is φ = 29614392.

The previous prime is 51825203. The next prime is 51825209. The reversal of 51825207 is 70252815.

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

It is not a de Polignac number, because 51825207 - 2² = 51825203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51825203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1233913 + ... + 1233954.

It is an arithmetic number, because the mean of its divisors is an integer number (9871472).

Almost surely, 2^51825207 is an apocalyptic number.

51825207 is a deficient number, since it is larger than the sum of its proper divisors (27146569).

51825207 is a wasteful number, since it uses less digits than its factorization.

51825207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2467877.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 51825207 is about 7198.9726350362. The cubic root of 51825207 is about 372.8324302952.

The spelling of 51825207 in words is "fifty-one million, eight hundred twenty-five thousand, two hundred seven".