38555560 has 64 divisors (see below), whose sum is σ = 92433600. Its totient is φ = 14432256.

The previous prime is 38555519. The next prime is 38555581. The reversal of 38555560 is 6555583.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73459 + ... + 73981.

It is an arithmetic number, because the mean of its divisors is an integer number (1444275).

Almost surely, 2^38555560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38555560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46216800).

38555560 is an abundant number, since it is smaller than the sum of its proper divisors (53878040).

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

38555560 is a wasteful number, since it uses less digits than its factorization.

38555560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 38555560 is about 6209.3123612845. The cubic root of 38555560 is about 337.8280231054.

It can be divided in two parts, 385 and 55560, that added together give a triangular number (55945 = T₃₃₄).

The spelling of 38555560 in words is "thirty-eight million, five hundred fifty-five thousand, five hundred sixty".