51883619 has 4 divisors (see below), whose sum is σ = 52007280. Its totient is φ = 51759960.

The previous prime is 51883613. The next prime is 51883631. The reversal of 51883619 is 91638815.

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 51883619 - 2⁴ = 51883603 is a prime.

It is a super-2 number, since 2×51883619² = 5383819841074322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51883613) 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, 61199 + ... + 62040.

It is an arithmetic number, because the mean of its divisors is an integer number (13001820).

Almost surely, 2^51883619 is an apocalyptic number.

51883619 is a deficient number, since it is larger than the sum of its proper divisors (123661).

51883619 is a wasteful number, since it uses less digits than its factorization.

51883619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123660.

The product of its digits is 51840, while the sum is 41.

The square root of 51883619 is about 7203.0284603075. The cubic root of 51883619 is about 372.9724503895.

The spelling of 51883619 in words is "fifty-one million, eight hundred eighty-three thousand, six hundred nineteen".