5557391 has 8 divisors (see below), whose sum is σ = 6378624. Its totient is φ = 4743000.

The previous prime is 5557379. The next prime is 5557399. The reversal of 5557391 is 1937555.

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

It is a cyclic number.

It is not a de Polignac number, because 5557391 - 2¹⁰ = 5556367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5557399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176 + ... + 3338.

It is an arithmetic number, because the mean of its divisors is an integer number (797328).

Almost surely, 2^5557391 is an apocalyptic number.

5557391 is a deficient number, since it is larger than the sum of its proper divisors (821233).

5557391 is a wasteful number, since it uses less digits than its factorization.

5557391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421.

The product of its digits is 23625, while the sum is 35.

The square root of 5557391 is about 2357.4119283655. The cubic root of 5557391 is about 177.1292638905.

The spelling of 5557391 in words is "five million, five hundred fifty-seven thousand, three hundred ninety-one".