55603542042 has 80 divisors (see below), whose sum is σ = 128481230592. Its totient is φ = 17963791200.

The previous prime is 55603542041. The next prime is 55603542083. The reversal of 55603542042 is 24024530655.

55603542042 is a `hidden beast` number, since 5 + 5 + 603 + 5 + 4 + 2 + 0 + 42 = 666.

55603542042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55603541988 and 55603542006.

It is not an unprimeable number, because it can be changed into a prime (55603542041) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 748792 + ... + 819692.

Almost surely, 2^55603542042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55603542042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64240615296).

55603542042 is an abundant number, since it is smaller than the sum of its proper divisors (72877688550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55603542042 is a wasteful number, since it uses less digits than its factorization.

55603542042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71065 (or 71056 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 55603542042 in words is "fifty-five billion, six hundred three million, five hundred forty-two thousand, forty-two".