5521157 has 4 divisors (see below), whose sum is σ = 5649600. Its totient is φ = 5392716.

The previous prime is 5521147. The next prime is 5521181. The reversal of 5521157 is 7511255.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5521157 - 2⁸ = 5520901 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5521147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64157 + ... + 64242.

It is an arithmetic number, because the mean of its divisors is an integer number (1412400).

Almost surely, 2^5521157 is an apocalyptic number.

It is an amenable number.

5521157 is a deficient number, since it is larger than the sum of its proper divisors (128443).

5521157 is a wasteful number, since it uses less digits than its factorization.

5521157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128442.

The product of its digits is 1750, while the sum is 26.

The square root of 5521157 is about 2349.7142379447. The cubic root of 5521157 is about 176.7434652850.

It can be divided in two parts, 55 and 21157, that added together give a palindrome (21212).

The spelling of 5521157 in words is "five million, five hundred twenty-one thousand, one hundred fifty-seven".