253000155 has 16 divisors (see below), whose sum is σ = 407715840. Its totient is φ = 133961568.

The previous prime is 253000133. The next prime is 253000177. The reversal of 253000155 is 551000352.

It is an interprime number because it is at equal distance from previous prime (253000133) and next prime (253000177).

It is not a de Polignac number, because 253000155 - 2¹¹ = 252998107 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58587 + ... + 62756.

It is an arithmetic number, because the mean of its divisors is an integer number (25482240).

Almost surely, 2^253000155 is an apocalyptic number.

253000155 is a deficient number, since it is larger than the sum of its proper divisors (154715685).

253000155 is a wasteful number, since it uses less digits than its factorization.

253000155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121490.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 253000155 is about 15905.9785929694. The cubic root of 253000155 is about 632.4704835023.

The spelling of 253000155 in words is "two hundred fifty-three million, one hundred fifty-five", and thus it is an aban number.