155236025 has 24 divisors (see below), whose sum is σ = 222485760. Its totient is φ = 105240960.

The previous prime is 155236009. The next prime is 155236069. The reversal of 155236025 is 520632551.

It is a happy number.

It is not a de Polignac number, because 155236025 - 2⁴ = 155236009 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 10592 + ... + 20558.

It is an arithmetic number, because the mean of its divisors is an integer number (9270240).

Almost surely, 2^155236025 is an apocalyptic number.

It is an amenable number.

155236025 is a deficient number, since it is larger than the sum of its proper divisors (67249735).

155236025 is an equidigital number, since it uses as much as digits as its factorization.

155236025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10073 (or 10068 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 155236025 is about 12459.3749843241. The cubic root of 155236025 is about 537.4410535682.

Adding to 155236025 its reverse (520632551), we get a palindrome (675868576).

The spelling of 155236025 in words is "one hundred fifty-five million, two hundred thirty-six thousand, twenty-five".