155552406 has 16 divisors (see below), whose sum is σ = 311401584. Its totient is φ = 51801344.

The previous prime is 155552393. The next prime is 155552417. The reversal of 155552406 is 604255551.

155552406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 5235 + ... + 18398.

It is an arithmetic number, because the mean of its divisors is an integer number (19462599).

Almost surely, 2^155552406 is an apocalyptic number.

155552406 is an abundant number, since it is smaller than the sum of its proper divisors (155849178).

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

155552406 is a wasteful number, since it uses less digits than its factorization.

155552406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24735.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 155552406 is about 12472.0650254880. The cubic root of 155552406 is about 537.8059189481.

The spelling of 155552406 in words is "one hundred fifty-five million, five hundred fifty-two thousand, four hundred six".