55230112440 has 80 divisors (see below), whose sum is σ = 185634555480. Its totient is φ = 14728029120.

The previous prime is 55230112439. The next prime is 55230112447. The reversal of 55230112440 is 4421103255.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55230112447) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8519926 + ... + 8526405.

Almost surely, 2^55230112440 is an apocalyptic number.

It is an amenable number.

55230112440 is an abundant number, since it is smaller than the sum of its proper divisors (130404443040).

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

55230112440 is a wasteful number, since it uses less digits than its factorization.

55230112440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17046354 (or 17046341 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 55230112440 its reverse (4421103255), we get a palindrome (59651215695).

The spelling of 55230112440 in words is "fifty-five billion, two hundred thirty million, one hundred twelve thousand, four hundred forty".