51527717 has 16 divisors (see below), whose sum is σ = 54774720. Its totient is φ = 48408192.

The previous prime is 51527711. The next prime is 51527741. The reversal of 51527717 is 71772515.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51527717 - 2¹² = 51523621 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 (51527711) 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, 221033 + ... + 221265.

It is an arithmetic number, because the mean of its divisors is an integer number (3423420).

Almost surely, 2^51527717 is an apocalyptic number.

It is an amenable number.

51527717 is a deficient number, since it is larger than the sum of its proper divisors (3247003).

51527717 is a wasteful number, since it uses less digits than its factorization.

51527717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452.

The product of its digits is 17150, while the sum is 35.

The square root of 51527717 is about 7178.2809223379. The cubic root of 51527717 is about 372.1176762832.

The spelling of 51527717 in words is "fifty-one million, five hundred twenty-seven thousand, seven hundred seventeen".