55330802540 has 24 divisors (see below), whose sum is σ = 125132738640. Its totient is φ = 20429834688.

The previous prime is 55330802537. The next prime is 55330802543. The reversal of 55330802540 is 4520803355.

It is an interprime number because it is at equal distance from previous prime (55330802537) and next prime (55330802543).

It is a super-2 number, since 2×55330802540² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55330802540.

It is not an unprimeable number, because it can be changed into a prime (55330802543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106405130 + ... + 106405649.

It is an arithmetic number, because the mean of its divisors is an integer number (5213864110).

Almost surely, 2^55330802540 is an apocalyptic number.

It is an amenable number.

55330802540 is an abundant number, since it is smaller than the sum of its proper divisors (69801936100).

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

55330802540 is a wasteful number, since it uses less digits than its factorization.

55330802540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212810801 (or 212810799 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 55330802540 in words is "fifty-five billion, three hundred thirty million, eight hundred two thousand, five hundred forty".