55607774 has 4 divisors (see below), whose sum is σ = 83411664. Its totient is φ = 27803886.

The previous prime is 55607753. The next prime is 55607779. The reversal of 55607774 is 47770655.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55607779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13901942 + ... + 13901945.

It is an arithmetic number, because the mean of its divisors is an integer number (20852916).

Almost surely, 2^55607774 is an apocalyptic number.

55607774 is a deficient number, since it is larger than the sum of its proper divisors (27803890).

55607774 is a wasteful number, since it uses less digits than its factorization.

55607774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27803889.

The product of its (nonzero) digits is 205800, while the sum is 41.

The square root of 55607774 is about 7457.0620220030. The cubic root of 55607774 is about 381.6909271417.

The spelling of 55607774 in words is "fifty-five million, six hundred seven thousand, seven hundred seventy-four".