155541252 has 24 divisors (see below), whose sum is σ = 363132000. Its totient is φ = 51818176.

The previous prime is 155541251. The next prime is 155541257. The reversal of 155541252 is 252145551.

It is not an unprimeable number, because it can be changed into a prime (155541251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37624 + ... + 41552.

It is an arithmetic number, because the mean of its divisors is an integer number (15130500).

Almost surely, 2^155541252 is an apocalyptic number.

155541252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155541252 is an abundant number, since it is smaller than the sum of its proper divisors (207590748).

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

155541252 is a wasteful number, since it uses less digits than its factorization.

155541252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7235 (or 7233 counting only the distinct ones).

The product of its digits is 10000, while the sum is 30.

The square root of 155541252 is about 12471.6178581610. The cubic root of 155541252 is about 537.7930640508.

The spelling of 155541252 in words is "one hundred fifty-five million, five hundred forty-one thousand, two hundred fifty-two".