51360445 has 8 divisors (see below), whose sum is σ = 62795736. Its totient is φ = 40312896.

The previous prime is 51360437. The next prime is 51360467. The reversal of 51360445 is 54406315.

It can be written as a sum of positive squares in 4 ways, for example, as 13942756 + 37417689 = 3734^2 + 6117^2 .

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 51360445 - 2³ = 51360437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96642 + ... + 97171.

It is an arithmetic number, because the mean of its divisors is an integer number (7849467).

Almost surely, 2^51360445 is an apocalyptic number.

It is an amenable number.

51360445 is a deficient number, since it is larger than the sum of its proper divisors (11435291).

51360445 is a wasteful number, since it uses less digits than its factorization.

51360445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193871.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 51360445 is about 7166.6201936478. The cubic root of 51360445 is about 371.7145770873.

The spelling of 51360445 in words is "fifty-one million, three hundred sixty thousand, four hundred forty-five".