55042300240 has 40 divisors (see below), whose sum is σ = 128410171848. Its totient is φ = 21941767680.

The previous prime is 55042300231. The next prime is 55042300241. The reversal of 55042300240 is 4200324055.

It can be written as a sum of positive squares in 4 ways, for example, as 29362878736 + 25679421504 = 171356^2 + 160248^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55042300241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150671 + ... + 1197550.

Almost surely, 2^55042300240 is an apocalyptic number.

It is an amenable number.

55042300240 is an abundant number, since it is smaller than the sum of its proper divisors (73367871608).

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

55042300240 is a wasteful number, since it uses less digits than its factorization.

55042300240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348527 (or 2348521 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 55042300240 its reverse (4200324055), we get a palindrome (59242624295).

The spelling of 55042300240 in words is "fifty-five billion, forty-two million, three hundred thousand, two hundred forty".