5625391 has 4 divisors (see below), whose sum is σ = 5819400. Its totient is φ = 5431384.

The previous prime is 5625341. The next prime is 5625407. The reversal of 5625391 is 1935265.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5625391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5625331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96961 + ... + 97018.

It is an arithmetic number, because the mean of its divisors is an integer number (1454850).

Almost surely, 2^5625391 is an apocalyptic number.

5625391 is a deficient number, since it is larger than the sum of its proper divisors (194009).

5625391 is a wasteful number, since it uses less digits than its factorization.

5625391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194008.

The product of its digits is 8100, while the sum is 31.

The square root of 5625391 is about 2371.7906737316. The cubic root of 5625391 is about 177.8487858558.

The spelling of 5625391 in words is "five million, six hundred twenty-five thousand, three hundred ninety-one".