155450056 has 32 divisors (see below), whose sum is σ = 298702080. Its totient is φ = 75808000.

The previous prime is 155450033. The next prime is 155450059. The reversal of 155450056 is 650054551.

155450056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (155450059) 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, 150261 + ... + 151291.

It is an arithmetic number, because the mean of its divisors is an integer number (9334440).

Almost surely, 2^155450056 is an apocalyptic number.

It is an amenable number.

155450056 is a deficient number, since it is larger than the sum of its proper divisors (143252024).

155450056 is a wasteful number, since it uses less digits than its factorization.

155450056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485 (or 1481 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 155450056 is about 12467.9611805620. The cubic root of 155450056 is about 537.6879383174.

The spelling of 155450056 in words is "one hundred fifty-five million, four hundred fifty thousand, fifty-six".