51887002 has 8 divisors (see below), whose sum is σ = 77872212. Its totient is φ = 25929600.

The previous prime is 51886999. The next prime is 51887029. The reversal of 51887002 is 20078815.

It can be written as a sum of positive squares in 2 ways, for example, as 51423241 + 463761 = 7171^2 + 681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1399 + ... + 10282.

Almost surely, 2^51887002 is an apocalyptic number.

51887002 is a deficient number, since it is larger than the sum of its proper divisors (25985210).

51887002 is a wasteful number, since it uses less digits than its factorization.

51887002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13904.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 51887002 is about 7203.2632882604. The cubic root of 51887002 is about 372.9805565985.

The spelling of 51887002 in words is "fifty-one million, eight hundred eighty-seven thousand, two".