155497325 has 6 divisors (see below), whose sum is σ = 192816714. Its totient is φ = 124397840.

The previous prime is 155497289. The next prime is 155497327. The reversal of 155497325 is 523794551.

155497325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1811716 + 153685609 = 1346^2 + 12397^2 .

It is a de Polignac number, because none of the positive numbers 2^k-155497325 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155497327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3109922 + ... + 3109971.

It is an arithmetic number, because the mean of its divisors is an integer number (32136119).

Almost surely, 2^155497325 is an apocalyptic number.

It is an amenable number.

155497325 is a deficient number, since it is larger than the sum of its proper divisors (37319389).

155497325 is an equidigital number, since it uses as much as digits as its factorization.

155497325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6219903 (or 6219898 counting only the distinct ones).

The product of its digits is 189000, while the sum is 41.

The square root of 155497325 is about 12469.8566551505. The cubic root of 155497325 is about 537.7424325520.

The spelling of 155497325 in words is "one hundred fifty-five million, four hundred ninety-seven thousand, three hundred twenty-five".