55463038240 has 96 divisors (see below), whose sum is σ = 135637876080. Its totient is φ = 21406285824.

The previous prime is 55463038229. The next prime is 55463038243. The reversal of 55463038240 is 4283036455.

55463038240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 757570576 + 54705467664 = 27524^2 + 233892^2 .

It is a super-2 number, since 2×55463038240² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 55463038193 and 55463038202.

It is not an unprimeable number, because it can be changed into a prime (55463038243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9801492 + ... + 9807148.

Almost surely, 2^55463038240 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 55463038240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67818938040).

55463038240 is an abundant number, since it is smaller than the sum of its proper divisors (80174837840).

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

55463038240 is a wasteful number, since it uses less digits than its factorization.

55463038240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7814 (or 7806 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 55463038240 in words is "fifty-five billion, four hundred sixty-three million, thirty-eight thousand, two hundred forty".