51913859 has 8 divisors (see below), whose sum is σ = 52704960. Its totient is φ = 51129000.

The previous prime is 51913837. The next prime is 51913879. The reversal of 51913859 is 95831915.

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 51913859 - 2¹² = 51909763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51913879) 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, 16784 + ... + 19634.

It is an arithmetic number, because the mean of its divisors is an integer number (6588120).

Almost surely, 2^51913859 is an apocalyptic number.

51913859 is a deficient number, since it is larger than the sum of its proper divisors (791101).

51913859 is a wasteful number, since it uses less digits than its factorization.

51913859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121.

The product of its digits is 48600, while the sum is 41.

The square root of 51913859 is about 7205.1272716032. The cubic root of 51913859 is about 373.0448977669.

The spelling of 51913859 in words is "fifty-one million, nine hundred thirteen thousand, eight hundred fifty-nine".