55023146 has 4 divisors (see below), whose sum is σ = 82534722. Its totient is φ = 27511572.

The previous prime is 55023139. The next prime is 55023149. The reversal of 55023146 is 64132055.

55023146 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., 49210225 + 5812921 = 7015^2 + 2411^2 .

It is a super-4 number, since 4×55023146⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (55023149) 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, 13755785 + ... + 13755788.

Almost surely, 2^55023146 is an apocalyptic number.

55023146 is a deficient number, since it is larger than the sum of its proper divisors (27511576).

55023146 is a wasteful number, since it uses less digits than its factorization.

55023146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27511575.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 55023146 is about 7417.7588259528. The cubic root of 55023146 is about 380.3485859505.

The spelling of 55023146 in words is "fifty-five million, twenty-three thousand, one hundred forty-six".