51883487 has 4 divisors (see below), whose sum is σ = 52540320. Its totient is φ = 51226656.

The previous prime is 51883483. The next prime is 51883493. The reversal of 51883487 is 78438815.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51883487 - 2² = 51883483 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 (51883483) 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, 328298 + ... + 328455.

It is an arithmetic number, because the mean of its divisors is an integer number (13135080).

Almost surely, 2^51883487 is an apocalyptic number.

51883487 is a deficient number, since it is larger than the sum of its proper divisors (656833).

51883487 is an equidigital number, since it uses as much as digits as its factorization.

51883487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656832.

The product of its digits is 215040, while the sum is 44.

The square root of 51883487 is about 7203.0192974891. The cubic root of 51883487 is about 372.9721340892.

The spelling of 51883487 in words is "fifty-one million, eight hundred eighty-three thousand, four hundred eighty-seven".