155136025 has 24 divisors (see below), whose sum is σ = 211932864. Its totient is φ = 111710400.

The previous prime is 155136019. The next prime is 155136031. The reversal of 155136025 is 520631551.

It is an interprime number because it is at equal distance from previous prime (155136019) and next prime (155136031).

It is not a de Polignac number, because 155136025 - 2³ = 155136017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155135984 and 155136002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25587 + ... + 31063.

It is an arithmetic number, because the mean of its divisors is an integer number (8830536).

Almost surely, 2^155136025 is an apocalyptic number.

It is an amenable number.

155136025 is a deficient number, since it is larger than the sum of its proper divisors (56796839).

155136025 is a wasteful number, since it uses less digits than its factorization.

155136025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5601 (or 5596 counting only the distinct ones).

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

The square root of 155136025 is about 12455.3612954422. The cubic root of 155136025 is about 537.3256257870.

Adding to 155136025 its reverse (520631551), we get a palindrome (675767576).

The spelling of 155136025 in words is "one hundred fifty-five million, one hundred thirty-six thousand, twenty-five".