55420202455 has 16 divisors (see below), whose sum is σ = 68278140000. Its totient is φ = 43158384640.

The previous prime is 55420202417. The next prime is 55420202479.

55420202455 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-55420202455 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55420202455.

It is a congruent number.

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, 209005 + ... + 393094.

It is an arithmetic number, because the mean of its divisors is an integer number (4267383750).

Almost surely, 2^55420202455 is an apocalyptic number.

55420202455 is a deficient number, since it is larger than the sum of its proper divisors (12857937545).

55420202455 is a wasteful number, since it uses less digits than its factorization.

55420202455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602594.

The product of its (nonzero) digits is 80000, while the sum is 34.

The spelling of 55420202455 in words is "fifty-five billion, four hundred twenty million, two hundred two thousand, four hundred fifty-five".