55420418488 has 16 divisors (see below), whose sum is σ = 104379266880. Its totient is φ = 27585947328.

The previous prime is 55420418483. The next prime is 55420418497. The reversal of 55420418488 is 88481402455.

It is a super-2 number, since 2×55420418488² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55420418483) 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 3 ways as a sum of consecutive naturals, for example, 15530845 + ... + 15534412.

It is an arithmetic number, because the mean of its divisors is an integer number (6523704180).

Almost surely, 2^55420418488 is an apocalyptic number.

It is an amenable number.

55420418488 is a deficient number, since it is larger than the sum of its proper divisors (48958848392).

55420418488 is a wasteful number, since it uses less digits than its factorization.

55420418488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31065486 (or 31065482 counting only the distinct ones).

The product of its (nonzero) digits is 1638400, while the sum is 49.

The spelling of 55420418488 in words is "fifty-five billion, four hundred twenty million, four hundred eighteen thousand, four hundred eighty-eight".