51827885 has 8 divisors (see below), whose sum is σ = 62277216. Its totient is φ = 41406480.

The previous prime is 51827873. The next prime is 51827903. The reversal of 51827885 is 58872815.

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

It is not a de Polignac number, because 51827885 - 2⁴ = 51827869 is a prime.

It is a super-2 number, since 2×51827885² = 5372259327146450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2651 + ... + 10520.

It is an arithmetic number, because the mean of its divisors is an integer number (7784652).

Almost surely, 2^51827885 is an apocalyptic number.

It is an amenable number.

51827885 is a deficient number, since it is larger than the sum of its proper divisors (10449331).

51827885 is a wasteful number, since it uses less digits than its factorization.

51827885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13963.

The product of its digits is 179200, while the sum is 44.

The square root of 51827885 is about 7199.1586313958. The cubic root of 51827885 is about 372.8388520612.

The spelling of 51827885 in words is "fifty-one million, eight hundred twenty-seven thousand, eight hundred eighty-five".