155116025 has 36 divisors (see below), whose sum is σ = 207156012. Its totient is φ = 115125120.

The previous prime is 155116009. The next prime is 155116051. The reversal of 155116025 is 520611551.

It can be written as a sum of positive squares in 6 ways, for example, as 5396329 + 149719696 = 2323^2 + 12236^2 .

It is not a de Polignac number, because 155116025 - 2⁴ = 155116009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155115985 and 155116003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 489167 + ... + 489483.

Almost surely, 2^155116025 is an apocalyptic number.

It is an amenable number.

155116025 is a deficient number, since it is larger than the sum of its proper divisors (52039987).

155116025 is a wasteful number, since it uses less digits than its factorization.

155116025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 155116025 is about 12454.5584024485. The cubic root of 155116025 is about 537.3025342788.

Adding to 155116025 its reverse (520611551), we get a palindrome (675727576).

It can be divided in two parts, 1551 and 16025, that multiplied together give a triangular number (24854775 = T₇₀₅₀).

The spelling of 155116025 in words is "one hundred fifty-five million, one hundred sixteen thousand, twenty-five".