5215745 has 8 divisors (see below), whose sum is σ = 6301800. Its totient is φ = 4144000.

The previous prime is 5215739. The next prime is 5215751. The reversal of 5215745 is 5475125.

It is an interprime number because it is at equal distance from previous prime (5215739) and next prime (5215751).

It can be written as a sum of positive squares in 4 ways, for example, as 21904 + 5193841 = 148^2 + 2279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5215745 - 2⁴ = 5215729 is a prime.

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, 2756 + ... + 4245.

It is an arithmetic number, because the mean of its divisors is an integer number (787725).

Almost surely, 2^5215745 is an apocalyptic number.

It is an amenable number.

5215745 is a deficient number, since it is larger than the sum of its proper divisors (1086055).

5215745 is a wasteful number, since it uses less digits than its factorization.

5215745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7155.

The product of its digits is 7000, while the sum is 29.

The square root of 5215745 is about 2283.8005604693. The cubic root of 5215745 is about 173.4225030184.

The spelling of 5215745 in words is "five million, two hundred fifteen thousand, seven hundred forty-five".