5201645 has 16 divisors (see below), whose sum is σ = 6624768. Its totient is φ = 3913920.

The previous prime is 5201641. The next prime is 5201659. The reversal of 5201645 is 5461025.

5201645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5201645 - 2² = 5201641 is a prime.

It is a super-3 number, since 3×5201645³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5201645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5201641) 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, 5282 + ... + 6188.

It is an arithmetic number, because the mean of its divisors is an integer number (414048).

Almost surely, 2^5201645 is an apocalyptic number.

It is an amenable number.

5201645 is a deficient number, since it is larger than the sum of its proper divisors (1423123).

5201645 is a wasteful number, since it uses less digits than its factorization.

5201645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 5201645 is about 2280.7115117875. The cubic root of 5201645 is about 173.2660879027.

The spelling of 5201645 in words is "five million, two hundred one thousand, six hundred forty-five".