30155255 has 16 divisors (see below), whose sum is σ = 39879840. Its totient is φ = 21748608.

The previous prime is 30155249. The next prime is 30155269. The reversal of 30155255 is 55255103.

It is a cyclic number.

It is not a de Polignac number, because 30155255 - 2⁴ = 30155239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2600 + ... + 8189.

It is an arithmetic number, because the mean of its divisors is an integer number (2492490).

Almost surely, 2^30155255 is an apocalyptic number.

30155255 is a deficient number, since it is larger than the sum of its proper divisors (9724585).

30155255 is a wasteful number, since it uses less digits than its factorization.

30155255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10850.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 30155255 is about 5491.3800633356. The cubic root of 30155255 is about 311.2583434590.

The spelling of 30155255 in words is "thirty million, one hundred fifty-five thousand, two hundred fifty-five".