55555010440 has 16 divisors (see below), whose sum is σ = 124998773580. Its totient is φ = 22222004160.

The previous prime is 55555010437. The next prime is 55555010443. The reversal of 55555010440 is 4401055555.

It is an interprime number because it is at equal distance from previous prime (55555010437) and next prime (55555010443).

It can be written as a sum of positive squares in 2 ways, for example, as 55442353444 + 112656996 = 235462^2 + 10614^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55555010396 and 55555010405.

It is not an unprimeable number, because it can be changed into a prime (55555010443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694437591 + ... + 694437670.

Almost surely, 2^55555010440 is an apocalyptic number.

It is an amenable number.

55555010440 is an abundant number, since it is smaller than the sum of its proper divisors (69443763140).

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

55555010440 is a wasteful number, since it uses less digits than its factorization.

55555010440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388875272 (or 1388875268 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 34.

Adding to 55555010440 its reverse (4401055555), we get a palindrome (59956065995).

The spelling of 55555010440 in words is "fifty-five billion, five hundred fifty-five million, ten thousand, four hundred forty".