55670111 has 8 divisors (see below), whose sum is σ = 65817120. Its totient is φ = 46071648.

The previous prime is 55670107. The next prime is 55670113. The reversal of 55670111 is 11107655.

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

It is not a de Polignac number, because 55670111 - 2² = 55670107 is a prime.

It is a super-2 number, since 2×55670111² = 6198322517504642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55670113) 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, 136916 + ... + 137321.

It is an arithmetic number, because the mean of its divisors is an integer number (8227140).

Almost surely, 2^55670111 is an apocalyptic number.

55670111 is a deficient number, since it is larger than the sum of its proper divisors (10147009).

55670111 is a wasteful number, since it uses less digits than its factorization.

55670111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274273.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 55670111 is about 7461.2405804933. The cubic root of 55670111 is about 381.8335006240.

Adding to 55670111 its reverse (11107655), we get a palindrome (66777766).

It can be divided in two parts, 55670 and 111, that multiplied together give a triangular number (6179370 = T₃₅₁₅).

The spelling of 55670111 in words is "fifty-five million, six hundred seventy thousand, one hundred eleven".