5525991 has 6 divisors (see below), whose sum is σ = 7982000. Its totient is φ = 3683988.

The previous prime is 5525981. The next prime is 5526019. The reversal of 5525991 is 1995255.

It is not a de Polignac number, because 5525991 - 2⁹ = 5525479 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 (5525981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306991 + ... + 307008.

Almost surely, 2^5525991 is an apocalyptic number.

5525991 is a deficient number, since it is larger than the sum of its proper divisors (2456009).

5525991 is a wasteful number, since it uses less digits than its factorization.

5525991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614005 (or 614002 counting only the distinct ones).

The product of its digits is 20250, while the sum is 36.

The square root of 5525991 is about 2350.7426486113. The cubic root of 5525991 is about 176.7950322956.

The spelling of 5525991 in words is "five million, five hundred twenty-five thousand, nine hundred ninety-one".