155018052 has 36 divisors (see below), whose sum is σ = 447830656. Its totient is φ = 44290800.

The previous prime is 155018051. The next prime is 155018077. The reversal of 155018052 is 250810551.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155018051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 307324 + ... + 307827.

Almost surely, 2^155018052 is an apocalyptic number.

155018052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155018052 is an abundant number, since it is smaller than the sum of its proper divisors (292812604).

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

155018052 is a wasteful number, since it uses less digits than its factorization.

155018052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615168 (or 615163 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 155018052 is about 12450.6245626474. The cubic root of 155018052 is about 537.1893883762.

The spelling of 155018052 in words is "one hundred fifty-five million, eighteen thousand, fifty-two".