55700181 has 24 divisors (see below), whose sum is σ = 86014656. Its totient is φ = 34647360.

The previous prime is 55700173. The next prime is 55700201. The reversal of 55700181 is 18100755.

It is not a de Polignac number, because 55700181 - 2³ = 55700173 is a prime.

It is a super-2 number, since 2×55700181² = 6205020326865522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55700111) 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, 5206 + ... + 11768.

It is an arithmetic number, because the mean of its divisors is an integer number (3583944).

Almost surely, 2^55700181 is an apocalyptic number.

It is an amenable number.

55700181 is a deficient number, since it is larger than the sum of its proper divisors (30314475).

55700181 is a wasteful number, since it uses less digits than its factorization.

55700181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6633 (or 6630 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 55700181 is about 7463.2553889037. The cubic root of 55700181 is about 381.9022368902.

The spelling of 55700181 in words is "fifty-five million, seven hundred thousand, one hundred eighty-one".