55221525405002 has 16 divisors (see below), whose sum is σ = 94291300297152. Its totient is φ = 24009358871520.

The previous prime is 55221525405001. The next prime is 55221525405083. The reversal of 55221525405002 is 20050452512255.

It is not an unprimeable number, because it can be changed into a prime (55221525405001) 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, 54566724203 + ... + 54566725214.

It is an arithmetic number, because the mean of its divisors is an integer number (5893206268572).

Almost surely, 2^{55221525405002} is an apocalyptic number.

55221525405002 is a deficient number, since it is larger than the sum of its proper divisors (39069774892150).

55221525405002 is a wasteful number, since it uses less digits than its factorization.

55221525405002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109133449453.

The product of its (nonzero) digits is 200000, while the sum is 38.

Adding to 55221525405002 its reverse (20050452512255), we get a palindrome (75271977917257).

The spelling of 55221525405002 in words is "fifty-five trillion, two hundred twenty-one billion, five hundred twenty-five million, four hundred five thousand, two".