155244325 has 6 divisors (see below), whose sum is σ = 192502994. Its totient is φ = 124195440.

The previous prime is 155244251. The next prime is 155244347. The reversal of 155244325 is 523442551.

It can be written as a sum of positive squares in 3 ways, for example, as 5377761 + 149866564 = 2319^2 + 12242^2 .

It is not a de Polignac number, because 155244325 - 2¹⁵ = 155211557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3104862 + ... + 3104911.

Almost surely, 2^155244325 is an apocalyptic number.

It is an amenable number.

155244325 is a deficient number, since it is larger than the sum of its proper divisors (37258669).

155244325 is an equidigital number, since it uses as much as digits as its factorization.

155244325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6209783 (or 6209778 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 155244325 is about 12459.7080623905. The cubic root of 155244325 is about 537.4506318458.

Adding to 155244325 its reverse (523442551), we get a palindrome (678686876).

The spelling of 155244325 in words is "one hundred fifty-five million, two hundred forty-four thousand, three hundred twenty-five".