55111692 has 12 divisors (see below), whose sum is σ = 128593976. Its totient is φ = 18370560.

The previous prime is 55111649. The next prime is 55111699. The reversal of 55111692 is 29611155.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (55111699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2296309 + ... + 2296332.

Almost surely, 2^55111692 is an apocalyptic number.

It is an amenable number.

55111692 is an abundant number, since it is smaller than the sum of its proper divisors (73482284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55111692 is a wasteful number, since it uses less digits than its factorization.

55111692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4592648 (or 4592646 counting only the distinct ones).

The product of its digits is 2700, while the sum is 30.

The square root of 55111692 is about 7423.7249410252. The cubic root of 55111692 is about 380.5525019316.

The spelling of 55111692 in words is "fifty-five million, one hundred eleven thousand, six hundred ninety-two".