155260224 has 126 divisors (see below), whose sum is σ = 517776714. Its totient is φ = 44352000.

The previous prime is 155260187. The next prime is 155260247. The reversal of 155260224 is 422062551.

155260224 is a `hidden beast` number, since 1 + 5 + 52 + 602 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 154554624 + 705600 = 12432^2 + 840^2 .

It is a tau number, because it is divible by the number of its divisors (126).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25474 + ... + 30974.

It is an arithmetic number, because the mean of its divisors is an integer number (4109339).

Almost surely, 2^155260224 is an apocalyptic number.

155260224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155260224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258888357).

155260224 is an abundant number, since it is smaller than the sum of its proper divisors (362516490).

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

155260224 is a wasteful number, since it uses less digits than its factorization.

155260224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5533 (or 5513 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 155260224 is about 12460.3460626100. The cubic root of 155260224 is about 537.4689784873.

It can be divided in two parts, 1552 and 60224, that added together give a triangular number (61776 = T₃₅₁).

The spelling of 155260224 in words is "one hundred fifty-five million, two hundred sixty thousand, two hundred twenty-four".