55100550040 has 32 divisors (see below), whose sum is σ = 124097994000. Its totient is φ = 22018574464.

The previous prime is 55100550017. The next prime is 55100550041. The reversal of 55100550040 is 4005500155.

It is a super-2 number, since 2×55100550040² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55100549987 and 55100550014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55100550041) 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, 635155 + ... + 716674.

Almost surely, 2^55100550040 is an apocalyptic number.

It is an amenable number.

55100550040 is an abundant number, since it is smaller than the sum of its proper divisors (68997443960).

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

55100550040 is a wasteful number, since it uses less digits than its factorization.

55100550040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352859 (or 1352855 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The spelling of 55100550040 in words is "fifty-five billion, one hundred million, five hundred fifty thousand, forty".