55030740 has 24 divisors (see below), whose sum is σ = 154086240. Its totient is φ = 14674848.

The previous prime is 55030739. The next prime is 55030741. The reversal of 55030740 is 4703055.

It is an interprime number because it is at equal distance from previous prime (55030739) and next prime (55030741).

It is a self number, because there is not a number n which added to its sum of digits gives 55030740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55030741) 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, 458530 + ... + 458649.

It is an arithmetic number, because the mean of its divisors is an integer number (6420260).

Almost surely, 2^55030740 is an apocalyptic number.

It is an amenable number.

55030740 is an abundant number, since it is smaller than the sum of its proper divisors (99055500).

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

55030740 is a wasteful number, since it uses less digits than its factorization.

55030740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917191 (or 917189 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 55030740 is about 7418.2706879703. The cubic root of 55030740 is about 380.3660830374.

Adding to 55030740 its reverse (4703055), we get a palindrome (59733795).

The spelling of 55030740 in words is "fifty-five million, thirty thousand, seven hundred forty".