5242645 has 8 divisors (see below), whose sum is σ = 6394680. Its totient is φ = 4125120.

The previous prime is 5242619. The next prime is 5242661. The reversal of 5242645 is 5462425.

It can be written as a sum of positive squares in 4 ways, for example, as 407044 + 4835601 = 638^2 + 2199^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-5242645 is a prime.

It is an Ulam number.

5242645 is a lucky 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, 8290 + ... + 8899.

It is an arithmetic number, because the mean of its divisors is an integer number (799335).

Almost surely, 2^5242645 is an apocalyptic number.

It is an amenable number.

5242645 is a deficient number, since it is larger than the sum of its proper divisors (1152035).

5242645 is a wasteful number, since it uses less digits than its factorization.

5242645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17255.

The product of its digits is 9600, while the sum is 28.

The square root of 5242645 is about 2289.6822923716. The cubic root of 5242645 is about 173.7201318498.

The spelling of 5242645 in words is "five million, two hundred forty-two thousand, six hundred forty-five".