155209496252 has 12 divisors (see below), whose sum is σ = 276220290360. Its totient is φ = 76289413296.

The previous prime is 155209496243. The next prime is 155209496263. The reversal of 155209496252 is 252694902551.

It is a happy number.

155209496252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 155209496252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328833443 + ... + 328833914.

It is an arithmetic number, because the mean of its divisors is an integer number (23018357530).

Almost surely, 2^155209496252 is an apocalyptic number.

It is an amenable number.

155209496252 is a deficient number, since it is larger than the sum of its proper divisors (121010794108).

155209496252 is a wasteful number, since it uses less digits than its factorization.

155209496252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657667420 (or 657667418 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 155209496252 in words is "one hundred fifty-five billion, two hundred nine million, four hundred ninety-six thousand, two hundred fifty-two".