5125645 has 12 divisors (see below), whose sum is σ = 7155324. Its totient is φ = 3514560.

The previous prime is 5125639. The next prime is 5125651. The reversal of 5125645 is 5465215.

It is an interprime number because it is at equal distance from previous prime (5125639) and next prime (5125651).

It can be written as a sum of positive squares in 2 ways, for example, as 2775556 + 2350089 = 1666^2 + 1533^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5125645 is a prime.

It is a super-3 number, since 3×5125645³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10216 + ... + 10705.

It is an arithmetic number, because the mean of its divisors is an integer number (596277).

Almost surely, 2^5125645 is an apocalyptic number.

It is an amenable number.

5125645 is a deficient number, since it is larger than the sum of its proper divisors (2029679).

5125645 is a wasteful number, since it uses less digits than its factorization.

5125645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20940 (or 20933 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 5125645 is about 2263.9887367211. The cubic root of 5125645 is about 172.4180945616.

The spelling of 5125645 in words is "five million, one hundred twenty-five thousand, six hundred forty-five".