155535556 has 48 divisors (see below), whose sum is σ = 309818880. Its totient is φ = 67680000.

The previous prime is 155535553. The next prime is 155535559. The reversal of 155535556 is 655535551.

It is an interprime number because it is at equal distance from previous prime (155535553) and next prime (155535559).

It is not an unprimeable number, because it can be changed into a prime (155535551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137200 + ... + 138328.

It is an arithmetic number, because the mean of its divisors is an integer number (6454560).

Almost surely, 2^155535556 is an apocalyptic number.

It is an amenable number.

155535556 is a deficient number, since it is larger than the sum of its proper divisors (154283324).

155535556 is a wasteful number, since it uses less digits than its factorization.

155535556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1274 counting only the distinct ones).

The product of its digits is 281250, while the sum is 40.

The square root of 155535556 is about 12471.3894975660. The cubic root of 155535556 is about 537.7864992185.

The spelling of 155535556 in words is "one hundred fifty-five million, five hundred thirty-five thousand, five hundred fifty-six".