5557181 has 24 divisors (see below), whose sum is σ = 7014336. Its totient is φ = 4308480.

The previous prime is 5557171. The next prime is 5557213. The reversal of 5557181 is 1817555.

5557181 = T₃₅ + T₃₆ + ... + T₃₂₁.

It is a happy number.

It is not a de Polignac number, because 5557181 - 2⁶ = 5557117 is a prime.

It is a super-2 number, since 2×5557181² = 61764521333522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5557171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82910 + ... + 82976.

It is an arithmetic number, because the mean of its divisors is an integer number (292264).

Almost surely, 2^5557181 is an apocalyptic number.

It is an amenable number.

5557181 is a deficient number, since it is larger than the sum of its proper divisors (1457155).

5557181 is a wasteful number, since it uses less digits than its factorization.

5557181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 132 counting only the distinct ones).

The product of its digits is 7000, while the sum is 32.

The square root of 5557181 is about 2357.3673875745. The cubic root of 5557181 is about 177.1270327708.

The spelling of 5557181 in words is "five million, five hundred fifty-seven thousand, one hundred eighty-one".