155226125 has 16 divisors (see below), whose sum is σ = 200406960. Its totient is φ = 119896000.

The previous prime is 155226121. The next prime is 155226157. The reversal of 155226125 is 521622551.

It can be written as a sum of positive squares in 8 ways, for example, as 92198404 + 63027721 = 9602^2 + 7939^2 .

It is not a de Polignac number, because 155226125 - 2² = 155226121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155226121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17786 + ... + 25035.

It is an arithmetic number, because the mean of its divisors is an integer number (12525435).

Almost surely, 2^155226125 is an apocalyptic number.

It is an amenable number.

155226125 is a deficient number, since it is larger than the sum of its proper divisors (45180835).

155226125 is an equidigital number, since it uses as much as digits as its factorization.

155226125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42865 (or 42855 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 155226125 is about 12458.9776867928. The cubic root of 155226125 is about 537.4296284291.

Adding to 155226125 its reverse (521622551), we get a palindrome (676848676).

The spelling of 155226125 in words is "one hundred fifty-five million, two hundred twenty-six thousand, one hundred twenty-five".