55204038 has 32 divisors (see below), whose sum is σ = 125291520. Its totient is φ = 18009000.

The previous prime is 55204033. The next prime is 55204043. The reversal of 55204038 is 83040255.

It is an interprime number because it is at equal distance from previous prime (55204033) and next prime (55204043).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55204033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8338 + ... + 13413.

It is an arithmetic number, because the mean of its divisors is an integer number (3915360).

Almost surely, 2^55204038 is an apocalyptic number.

55204038 is an abundant number, since it is smaller than the sum of its proper divisors (70087482).

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

55204038 is a wasteful number, since it uses less digits than its factorization.

55204038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21809 (or 21803 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 55204038 is about 7429.9419916982. The cubic root of 55204038 is about 380.7649365342.

The spelling of 55204038 in words is "fifty-five million, two hundred four thousand, thirty-eight".