55181434 has 32 divisors (see below), whose sum is σ = 108633600. Its totient is φ = 20366640.

The previous prime is 55181429. The next prime is 55181479. The reversal of 55181434 is 43418155.

It is a junction number, because it is equal to n+sod(n) for n = 55181396 and 55181405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6504 + ... + 12355.

It is an arithmetic number, because the mean of its divisors is an integer number (3394800).

Almost surely, 2^55181434 is an apocalyptic number.

55181434 is a deficient number, since it is larger than the sum of its proper divisors (53452166).

55181434 is a wasteful number, since it uses less digits than its factorization.

55181434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18898.

The product of its digits is 9600, while the sum is 31.

The square root of 55181434 is about 7428.4206935256. The cubic root of 55181434 is about 380.7129597469.

Adding to 55181434 its reverse (43418155), we get a palindrome (98599589).

The spelling of 55181434 in words is "fifty-five million, one hundred eighty-one thousand, four hundred thirty-four".