55029030 has 128 divisors (see below), whose sum is σ = 159252480. Its totient is φ = 11905920.

The previous prime is 55029019. The next prime is 55029031. The reversal of 55029030 is 3092055.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55029031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 514237 + ... + 514343.

It is an arithmetic number, because the mean of its divisors is an integer number (1244160).

Almost surely, 2^55029030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55029030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79626240).

55029030 is an abundant number, since it is smaller than the sum of its proper divisors (104223450).

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

55029030 is a wasteful number, since it uses less digits than its factorization.

55029030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 55029030 is about 7418.1554311028. The cubic root of 55029030 is about 380.3621432228.

The spelling of 55029030 in words is "fifty-five million, twenty-nine thousand, thirty".