155533252 has 18 divisors (see below), whose sum is σ = 316621662. Its totient is φ = 66657024.

The previous prime is 155533241. The next prime is 155533253. The reversal of 155533252 is 252335551.

155533252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 102738496 + 52794756 = 10136^2 + 7266^2 .

It is not an unprimeable number, because it can be changed into a prime (155533253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 396573 + ... + 396964.

Almost surely, 2^155533252 is an apocalyptic number.

It is an amenable number.

155533252 is an abundant number, since it is smaller than the sum of its proper divisors (161088410).

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

155533252 is a wasteful number, since it uses less digits than its factorization.

155533252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793555 (or 793546 counting only the distinct ones).

The product of its digits is 22500, while the sum is 31.

The square root of 155533252 is about 12471.2971258005. The cubic root of 155533252 is about 537.7838437353.

The spelling of 155533252 in words is "one hundred fifty-five million, five hundred thirty-three thousand, two hundred fifty-two".