155525506356 has 24 divisors (see below), whose sum is σ = 395883107424. Its totient is φ = 47128941280.

The previous prime is 155525506333. The next prime is 155525506379. The reversal of 155525506356 is 653605525551.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (155525506333) and next prime (155525506379).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589111635 + ... + 589111898.

It is an arithmetic number, because the mean of its divisors is an integer number (16495129476).

Almost surely, 2^155525506356 is an apocalyptic number.

It is an amenable number.

155525506356 is an abundant number, since it is smaller than the sum of its proper divisors (240357601068).

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

155525506356 is a wasteful number, since it uses less digits than its factorization.

155525506356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178223551 (or 1178223549 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 48.

The spelling of 155525506356 in words is "one hundred fifty-five billion, five hundred twenty-five million, five hundred six thousand, three hundred fifty-six".