51852587 has 4 divisors (see below), whose sum is σ = 51957000. Its totient is φ = 51748176.

The previous prime is 51852583. The next prime is 51852589. The reversal of 51852587 is 78525815.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78525815 = 5 ⋅15705163.

It is a cyclic number.

It is not a de Polignac number, because 51852587 - 2² = 51852583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51852583) 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, 51458 + ... + 52455.

It is an arithmetic number, because the mean of its divisors is an integer number (12989250).

Almost surely, 2^51852587 is an apocalyptic number.

51852587 is a deficient number, since it is larger than the sum of its proper divisors (104413).

51852587 is a wasteful number, since it uses less digits than its factorization.

51852587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104412.

The product of its digits is 112000, while the sum is 41.

The square root of 51852587 is about 7200.8740441699. The cubic root of 51852587 is about 372.8980763090.

The spelling of 51852587 in words is "fifty-one million, eight hundred fifty-two thousand, five hundred eighty-seven".