5278545 has 24 divisors (see below), whose sum is σ = 9375912. Its totient is φ = 2745600.

The previous prime is 5278541. The next prime is 5278547. The reversal of 5278545 is 5458725.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25281 + 5253264 = 159^2 + 2292^2 .

It is not a de Polignac number, because 5278545 - 2² = 5278541 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (5278541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415 + ... + 3275.

It is an arithmetic number, because the mean of its divisors is an integer number (390663).

Almost surely, 2^5278545 is an apocalyptic number.

It is an amenable number.

5278545 is a deficient number, since it is larger than the sum of its proper divisors (4097367).

5278545 is a wasteful number, since it uses less digits than its factorization.

5278545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913 (or 2910 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 5278545 is about 2297.5084330640. The cubic root of 5278545 is about 174.1157572971.

The spelling of 5278545 in words is "five million, two hundred seventy-eight thousand, five hundred forty-five".