155742325 has 12 divisors (see below), whose sum is σ = 199780740. Its totient is φ = 120296960.

The previous prime is 155742317. The next prime is 155742329. The reversal of 155742325 is 523247551.

It can be written as a sum of positive squares in 6 ways, for example, as 19483396 + 136258929 = 4414^2 + 11673^2 .

It is not a de Polignac number, because 155742325 - 2³ = 155742317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155742329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106684 + ... + 108133.

It is an arithmetic number, because the mean of its divisors is an integer number (16648395).

Almost surely, 2^155742325 is an apocalyptic number.

It is an amenable number.

155742325 is a deficient number, since it is larger than the sum of its proper divisors (44038415).

155742325 is a wasteful number, since it uses less digits than its factorization.

155742325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214856 (or 214851 counting only the distinct ones).

The product of its digits is 42000, while the sum is 34.

The square root of 155742325 is about 12479.6764781784. The cubic root of 155742325 is about 538.0247048536.

Adding to 155742325 its reverse (523247551), we get a palindrome (678989876).

The spelling of 155742325 in words is "one hundred fifty-five million, seven hundred forty-two thousand, three hundred twenty-five".