38551855550 has 48 divisors (see below), whose sum is σ = 77530318992. Its totient is φ = 14177760000.

The previous prime is 38551855549. The next prime is 38551855567. The reversal of 38551855550 is 5555815583.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45002 + ... + 281298.

It is an arithmetic number, because the mean of its divisors is an integer number (1615214979).

Almost surely, 2^38551855550 is an apocalyptic number.

38551855550 is an abundant number, since it is smaller than the sum of its proper divisors (38978463442).

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

38551855550 is a wasteful number, since it uses less digits than its factorization.

38551855550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236573 (or 236568 counting only the distinct ones).

The product of its (nonzero) digits is 3000000, while the sum is 50.

The spelling of 38551855550 in words is "thirty-eight billion, five hundred fifty-one million, eight hundred fifty-five thousand, five hundred fifty".