51552839 has 8 divisors (see below), whose sum is σ = 56058912. Its totient is φ = 47124000.

The previous prime is 51552827. The next prime is 51552847. The reversal of 51552839 is 93825515.

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 51552839 - 2²⁴ = 34775623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51552859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17912 + ... + 20589.

It is an arithmetic number, because the mean of its divisors is an integer number (7007364).

Almost surely, 2^51552839 is an apocalyptic number.

51552839 is a deficient number, since it is larger than the sum of its proper divisors (4506073).

51552839 is a wasteful number, since it uses less digits than its factorization.

51552839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38617.

The product of its digits is 54000, while the sum is 38.

The square root of 51552839 is about 7180.0305709656. The cubic root of 51552839 is about 372.1781409676.

The spelling of 51552839 in words is "fifty-one million, five hundred fifty-two thousand, eight hundred thirty-nine".