155072053 has 4 divisors (see below), whose sum is σ = 163233760. Its totient is φ = 146910348.

The previous prime is 155072051. The next prime is 155072059. The reversal of 155072053 is 350270551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 155072053 - 2¹ = 155072051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155072051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4080825 + ... + 4080862.

It is an arithmetic number, because the mean of its divisors is an integer number (40808440).

Almost surely, 2^155072053 is an apocalyptic number.

It is an amenable number.

155072053 is a deficient number, since it is larger than the sum of its proper divisors (8161707).

155072053 is an equidigital number, since it uses as much as digits as its factorization.

155072053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8161706.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 155072053 is about 12452.7929798901. The cubic root of 155072053 is about 537.2517583088.

The spelling of 155072053 in words is "one hundred fifty-five million, seventy-two thousand, fifty-three".