155925265 has 4 divisors (see below), whose sum is σ = 187110324. Its totient is φ = 124740208.

The previous prime is 155925251. The next prime is 155925277. The reversal of 155925265 is 562529551.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562529551 = 20789 ⋅27059.

It can be written as a sum of positive squares in 2 ways, for example, as 48678529 + 107246736 = 6977^2 + 10356^2 .

It is a cyclic number.

It is not a de Polignac number, because 155925265 - 2²⁷ = 21707537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15592522 + ... + 15592531.

It is an arithmetic number, because the mean of its divisors is an integer number (46777581).

Almost surely, 2^155925265 is an apocalyptic number.

It is an amenable number.

155925265 is a deficient number, since it is larger than the sum of its proper divisors (31185059).

155925265 is an equidigital number, since it uses as much as digits as its factorization.

155925265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31185058.

The product of its digits is 135000, while the sum is 40.

The square root of 155925265 is about 12487.0038439972. The cubic root of 155925265 is about 538.2352828631.

The spelling of 155925265 in words is "one hundred fifty-five million, nine hundred twenty-five thousand, two hundred sixty-five".