55420331522 has 16 divisors (see below), whose sum is σ = 83581882560. Its totient is φ = 27560046192.

The previous prime is 55420331503. The next prime is 55420331531. The reversal of 55420331522 is 22513302455.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240488 + ... + 410700.

It is an arithmetic number, because the mean of its divisors is an integer number (5223867660).

Almost surely, 2^55420331522 is an apocalyptic number.

55420331522 is a deficient number, since it is larger than the sum of its proper divisors (28161551038).

55420331522 is a wasteful number, since it uses less digits than its factorization.

55420331522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171097.

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

Adding to 55420331522 its reverse (22513302455), we get a palindrome (77933633977).

The spelling of 55420331522 in words is "fifty-five billion, four hundred twenty million, three hundred thirty-one thousand, five hundred twenty-two".