55100463642 has 36 divisors (see below), whose sum is σ = 138875660586. Its totient is φ = 15742989360.

The previous prime is 55100463569. The next prime is 55100463643. The reversal of 55100463642 is 24636400155.

55100463642 is a `hidden beast` number, since 5 + 5 + 1 + 0 + 0 + 4 + 6 + 3 + 642 = 666.

55100463642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 36929693241 + 18170770401 = 192171^2 + 134799^2 .

It is a super-2 number, since 2×55100463642² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55100463597 and 55100463606.

It is not an unprimeable number, because it can be changed into a prime (55100463643) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 31235209 + ... + 31236972.

Almost surely, 2^55100463642 is an apocalyptic number.

55100463642 is an abundant number, since it is smaller than the sum of its proper divisors (83775196944).

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

55100463642 is a wasteful number, since it uses less digits than its factorization.

55100463642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62472203 (or 62472193 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 55100463642 its reverse (24636400155), we get a palindrome (79736863797).

The spelling of 55100463642 in words is "fifty-five billion, one hundred million, four hundred sixty-three thousand, six hundred forty-two".