55562043240 has 576 divisors, whose sum is σ = 204370704720. Its totient is φ = 13077504000.

The previous prime is 55562043223. The next prime is 55562043259. The reversal of 55562043240 is 4234026555.

55562043240 is a `hidden beast` number, since 5 + 5 + 5 + 620 + 4 + 3 + 24 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 51038942724 + 4523100516 = 225918^2 + 67254^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 55562043195 and 55562043204.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 321167794 + ... + 321167966.

Almost surely, 2^55562043240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55562043240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102185352360).

55562043240 is an abundant number, since it is smaller than the sum of its proper divisors (148808661480).

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

55562043240 is a wasteful number, since it uses less digits than its factorization.

55562043240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 368 counting only the distinct ones).

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

Adding to 55562043240 its reverse (4234026555), we get a palindrome (59796069795).

The spelling of 55562043240 in words is "fifty-five billion, five hundred sixty-two million, forty-three thousand, two hundred forty".