55623434 has 4 divisors (see below), whose sum is σ = 83435154. Its totient is φ = 27811716.

The previous prime is 55623409. The next prime is 55623437. The reversal of 55623434 is 43432655.

55623434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 54804409 + 819025 = 7403^2 + 905^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55623434.

It is not an unprimeable number, because it can be changed into a prime (55623437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13905857 + ... + 13905860.

Almost surely, 2^55623434 is an apocalyptic number.

55623434 is a deficient number, since it is larger than the sum of its proper divisors (27811720).

55623434 is a wasteful number, since it uses less digits than its factorization.

55623434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27811719.

The product of its digits is 43200, while the sum is 32.

The square root of 55623434 is about 7458.1119594707. Note that the first 3 decimals coincide. The cubic root of 55623434 is about 381.7267537806.

The spelling of 55623434 in words is "fifty-five million, six hundred twenty-three thousand, four hundred thirty-four".