155032655 has 16 divisors (see below), whose sum is σ = 189250560. Its totient is φ = 121897728.

The previous prime is 155032651. The next prime is 155032663. The reversal of 155032655 is 556230551.

It is a cyclic number.

It is not a de Polignac number, because 155032655 - 2² = 155032651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155032651) 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, 139241 + ... + 140349.

It is an arithmetic number, because the mean of its divisors is an integer number (11828160).

Almost surely, 2^155032655 is an apocalyptic number.

155032655 is a deficient number, since it is larger than the sum of its proper divisors (34217905).

155032655 is a wasteful number, since it uses less digits than its factorization.

155032655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 155032655 is about 12451.2109852817. The cubic root of 155032655 is about 537.2062559393.

The spelling of 155032655 in words is "one hundred fifty-five million, thirty-two thousand, six hundred fifty-five".