55420015334 has 16 divisors (see below), whose sum is σ = 88036577568. Its totient is φ = 26075102592.

The previous prime is 55420015307. The next prime is 55420015337. The reversal of 55420015334 is 43351002455.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 55420015334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55420015337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33479 + ... + 334605.

It is an arithmetic number, because the mean of its divisors is an integer number (5502286098).

Almost surely, 2^55420015334 is an apocalyptic number.

55420015334 is a deficient number, since it is larger than the sum of its proper divisors (32616562234).

55420015334 is a wasteful number, since it uses less digits than its factorization.

55420015334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306559.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 55420015334 its reverse (43351002455), we get a palindrome (98771017789).

The spelling of 55420015334 in words is "fifty-five billion, four hundred twenty million, fifteen thousand, three hundred thirty-four".