51887007 has 16 divisors (see below), whose sum is σ = 77172480. Its totient is φ = 34455096.

The previous prime is 51886999. The next prime is 51887029. The reversal of 51887007 is 70078815.

It is not a de Polignac number, because 51887007 - 2³ = 51886999 is a prime.

It is a super-2 number, since 2×51887007² = 5384522990836098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51887807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3448 + ... + 10754.

It is an arithmetic number, because the mean of its divisors is an integer number (4823280).

Almost surely, 2^51887007 is an apocalyptic number.

51887007 is a deficient number, since it is larger than the sum of its proper divisors (25285473).

51887007 is a wasteful number, since it uses less digits than its factorization.

51887007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7579 (or 7573 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 51887007 is about 7203.2636353253. The cubic root of 51887007 is about 372.9805685790.

The spelling of 51887007 in words is "fifty-one million, eight hundred eighty-seven thousand, seven".