51864295 has 12 divisors (see below), whose sum is σ = 72398664. Its totient is φ = 35563920.

The previous prime is 51864289. The next prime is 51864301. The reversal of 51864295 is 59246815.

It is an interprime number because it is at equal distance from previous prime (51864289) and next prime (51864301).

It is not a de Polignac number, because 51864295 - 2¹¹ = 51862247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105601 + ... + 106090.

It is an arithmetic number, because the mean of its divisors is an integer number (6033222).

Almost surely, 2^51864295 is an apocalyptic number.

51864295 is a deficient number, since it is larger than the sum of its proper divisors (20534369).

51864295 is a wasteful number, since it uses less digits than its factorization.

51864295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211710 (or 211703 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 51864295 is about 7201.6869551515. The cubic root of 51864295 is about 372.9261402391.

The spelling of 51864295 in words is "fifty-one million, eight hundred sixty-four thousand, two hundred ninety-five".