155005254 has 12 divisors (see below), whose sum is σ = 335844756. Its totient is φ = 51668412.

The previous prime is 155005223. The next prime is 155005259. The reversal of 155005254 is 452500551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155005259) 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 5 ways as a sum of consecutive naturals, for example, 4305684 + ... + 4305719.

It is an arithmetic number, because the mean of its divisors is an integer number (27987063).

Almost surely, 2^155005254 is an apocalyptic number.

155005254 is an abundant number, since it is smaller than the sum of its proper divisors (180839502).

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

155005254 is a wasteful number, since it uses less digits than its factorization.

155005254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8611411 (or 8611408 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 155005254 is about 12450.1106019184. The cubic root of 155005254 is about 537.1746048528.

The spelling of 155005254 in words is "one hundred fifty-five million, five thousand, two hundred fifty-four".