55445134 has 16 divisors (see below), whose sum is σ = 87132672. Its totient is φ = 26410648.

The previous prime is 55445119. The next prime is 55445141. The reversal of 55445134 is 43154455.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55445096 and 55445105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9807 + ... + 14389.

It is an arithmetic number, because the mean of its divisors is an integer number (5445792).

Almost surely, 2^55445134 is an apocalyptic number.

55445134 is a deficient number, since it is larger than the sum of its proper divisors (31687538).

55445134 is a wasteful number, since it uses less digits than its factorization.

55445134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871.

The product of its digits is 24000, while the sum is 31.

The square root of 55445134 is about 7446.1489375381. The cubic root of 55445134 is about 381.3184442557.

Adding to 55445134 its reverse (43154455), we get a palindrome (98599589).

The spelling of 55445134 in words is "fifty-five million, four hundred forty-five thousand, one hundred thirty-four".