51883887 has 8 divisors (see below), whose sum is σ = 75467520. Its totient is φ = 31444760.

The previous prime is 51883859. The next prime is 51883933. The reversal of 51883887 is 78838815.

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

It is a cyclic number.

It is not a de Polignac number, because 51883887 - 2⁶ = 51883823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51883087) 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, 786087 + ... + 786152.

It is an arithmetic number, because the mean of its divisors is an integer number (9433440).

Almost surely, 2^51883887 is an apocalyptic number.

51883887 is a deficient number, since it is larger than the sum of its proper divisors (23583633).

51883887 is a wasteful number, since it uses less digits than its factorization.

51883887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572253.

The product of its digits is 430080, while the sum is 48.

The square root of 51883887 is about 7203.0470635697. The cubic root of 51883887 is about 372.9730925732.

The spelling of 51883887 in words is "fifty-one million, eight hundred eighty-three thousand, eight hundred eighty-seven".