55513858040 has 32 divisors (see below), whose sum is σ = 126011555280. Its totient is φ = 22009032192.

The previous prime is 55513858033. The next prime is 55513858061. The reversal of 55513858040 is 4085831555.

It is a junction number, because it is equal to n+sod(n) for n = 55513857982 and 55513858000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6136394 + ... + 6145433.

Almost surely, 2^55513858040 is an apocalyptic number.

It is an amenable number.

55513858040 is an abundant number, since it is smaller than the sum of its proper divisors (70497697240).

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

55513858040 is a wasteful number, since it uses less digits than its factorization.

55513858040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12281951 (or 12281947 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 44.

The spelling of 55513858040 in words is "fifty-five billion, five hundred thirteen million, eight hundred fifty-eight thousand, forty".