55420334 has 16 divisors (see below), whose sum is σ = 86173200. Its totient is φ = 26699904.

The previous prime is 55420331. The next prime is 55420361. The reversal of 55420334 is 43302455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55420331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54422 + ... + 55430.

It is an arithmetic number, because the mean of its divisors is an integer number (5385825).

Almost surely, 2^55420334 is an apocalyptic number.

55420334 is a deficient number, since it is larger than the sum of its proper divisors (30752866).

55420334 is a wasteful number, since it uses less digits than its factorization.

55420334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 55420334 is about 7444.4834609259. The cubic root of 55420334 is about 381.2615825918.

Adding to 55420334 its reverse (43302455), we get a palindrome (98722789).

The spelling of 55420334 in words is "fifty-five million, four hundred twenty thousand, three hundred thirty-four".