155325011 has 2 divisors, whose sum is σ = 155325012. Its totient is φ = 155325010.

The previous prime is 155324959. The next prime is 155325013. The reversal of 155325011 is 110523551.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155325011 is a prime.

Together with 155325013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (155325013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77662505 + 77662506.

It is an arithmetic number, because the mean of its divisors is an integer number (77662506).

Almost surely, 2^155325011 is an apocalyptic number.

155325011 is a deficient number, since it is larger than the sum of its proper divisors (1).

155325011 is an equidigital number, since it uses as much as digits as its factorization.

155325011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 155325011 is about 12462.9455186164. The cubic root of 155325011 is about 537.5437264589.

Adding to 155325011 its reverse (110523551), we get a palindrome (265848562).

The spelling of 155325011 in words is "one hundred fifty-five million, three hundred twenty-five thousand, eleven".