155316025 has 24 divisors (see below), whose sum is σ = 202665600. Its totient is φ = 117902400.

The previous prime is 155316019. The next prime is 155316037. The reversal of 155316025 is 520613551.

It is not a de Polignac number, because 155316025 - 2⁹ = 155315513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155315984 and 155316002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40960 + ... + 44590.

It is an arithmetic number, because the mean of its divisors is an integer number (8444400).

Almost surely, 2^155316025 is an apocalyptic number.

It is an amenable number.

155316025 is a deficient number, since it is larger than the sum of its proper divisors (47349575).

155316025 is a wasteful number, since it uses less digits than its factorization.

155316025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729 (or 3724 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 155316025 is about 12462.5850047251. The cubic root of 155316025 is about 537.5333601072.

Adding to 155316025 its reverse (520613551), we get a palindrome (675929576).

It can be divided in two parts, 1553 and 16025, that added together give a triangular number (17578 = T₁₈₇).

The spelling of 155316025 in words is "one hundred fifty-five million, three hundred sixteen thousand, twenty-five".