55003030 has 16 divisors (see below), whose sum is σ = 99968544. Its totient is φ = 21787200.

The previous prime is 55003027. The next prime is 55003033. The reversal of 55003030 is 3030055.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55003027) and next prime (55003033).

It is a junction number, because it is equal to n+sod(n) for n = 55002995 and 55003013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55003033) 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, 25671 + ... + 27730.

It is an arithmetic number, because the mean of its divisors is an integer number (6248034).

Almost surely, 2^55003030 is an apocalyptic number.

55003030 is a deficient number, since it is larger than the sum of its proper divisors (44965514).

55003030 is a wasteful number, since it uses less digits than its factorization.

55003030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53511.

The product of its (nonzero) digits is 225, while the sum is 16.

The square root of 55003030 is about 7416.4027668405. The cubic root of 55003030 is about 380.3022295515.

Adding to 55003030 its reverse (3030055), we get a palindrome (58033085).

The spelling of 55003030 in words is "fifty-five million, three thousand, thirty".