51825297 has 4 divisors (see below), whose sum is σ = 69100400. Its totient is φ = 34550196.

The previous prime is 51825289. The next prime is 51825307. The reversal of 51825297 is 79252815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51825297 - 2³ = 51825289 is a prime.

It is a super-2 number, since 2×51825297² = 5371722818276418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51825247) 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, 8637547 + ... + 8637552.

It is an arithmetic number, because the mean of its divisors is an integer number (17275100).

Almost surely, 2^51825297 is an apocalyptic number.

It is an amenable number.

51825297 is a deficient number, since it is larger than the sum of its proper divisors (17275103).

51825297 is a wasteful number, since it uses less digits than its factorization.

51825297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17275102.

The product of its digits is 50400, while the sum is 39.

The square root of 51825297 is about 7198.9788859254. The cubic root of 51825297 is about 372.8326461162.

The spelling of 51825297 in words is "fifty-one million, eight hundred twenty-five thousand, two hundred ninety-seven".