51870559 has 8 divisors (see below), whose sum is σ = 57370880. Its totient is φ = 46586016.

The previous prime is 51870547. The next prime is 51870571. The reversal of 51870559 is 95507815.

It is an interprime number because it is at equal distance from previous prime (51870547) and next prime (51870571).

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 51870559 - 2⁵ = 51870527 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 (51870509) 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, 53439 + ... + 54400.

It is an arithmetic number, because the mean of its divisors is an integer number (7171360).

Almost surely, 2^51870559 is an apocalyptic number.

51870559 is a deficient number, since it is larger than the sum of its proper divisors (5500321).

51870559 is a wasteful number, since it uses less digits than its factorization.

51870559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107889.

The product of its (nonzero) digits is 63000, while the sum is 40.

The square root of 51870559 is about 7202.1218401246. The cubic root of 51870559 is about 372.9411532347.

The spelling of 51870559 in words is "fifty-one million, eight hundred seventy thousand, five hundred fifty-nine".