232520154530225 has 24 divisors (see below), whose sum is σ = 295416469266072. Its totient is φ = 181442794291200.

The previous prime is 232520154530221. The next prime is 232520154530233. The reversal of 232520154530225 is 522035451025232.

It can be written as a sum of positive squares in 12 ways, for example, as 63780859909264 + 168739294620961 = 7986292^2 + 12989969^2 .

It is not a de Polignac number, because 232520154530225 - 2² = 232520154530221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232520154530221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17598872 + ... + 27834521.

It is an arithmetic number, because the mean of its divisors is an integer number (12309019552753).

Almost surely, 2^{232520154530225} is an apocalyptic number.

232520154530225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

232520154530225 is a deficient number, since it is larger than the sum of its proper divisors (62896314735847).

232520154530225 is a wasteful number, since it uses less digits than its factorization.

232520154530225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45438437 (or 45438432 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 232520154530225 in words is "two hundred thirty-two trillion, five hundred twenty billion, one hundred fifty-four million, five hundred thirty thousand, two hundred twenty-five".