155500038 has 12 divisors (see below), whose sum is σ = 336916788. Its totient is φ = 51833340.

The previous prime is 155499989. The next prime is 155500043. The reversal of 155500038 is 830005551.

155500038 is a `hidden beast` number, since 155 + 500 + 0 + 3 + 8 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155499984 and 155500020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4319428 + ... + 4319463.

It is an arithmetic number, because the mean of its divisors is an integer number (28076399).

Almost surely, 2^155500038 is an apocalyptic number.

155500038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

155500038 is an abundant number, since it is smaller than the sum of its proper divisors (181416750).

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

155500038 is a wasteful number, since it uses less digits than its factorization.

155500038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8638899 (or 8638896 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 155500038 is about 12469.9654370010. The cubic root of 155500038 is about 537.7455599085.

Adding to 155500038 its reverse (830005551), we get a palindrome (985505589).

The spelling of 155500038 in words is "one hundred fifty-five million, five hundred thousand, thirty-eight".