155625427 has 2 divisors, whose sum is σ = 155625428. Its totient is φ = 155625426.

The previous prime is 155625347. The next prime is 155625433. The reversal of 155625427 is 724526551.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155625427 is a prime.

It is not a weakly prime, because it can be changed into another prime (155625467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77812713 + 77812714.

It is an arithmetic number, because the mean of its divisors is an integer number (77812714).

Almost surely, 2^155625427 is an apocalyptic number.

155625427 is a deficient number, since it is larger than the sum of its proper divisors (1).

155625427 is an equidigital number, since it uses as much as digits as its factorization.

155625427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84000, while the sum is 37.

The square root of 155625427 is about 12474.9920641257. The cubic root of 155625427 is about 537.8900599001.

The spelling of 155625427 in words is "one hundred fifty-five million, six hundred twenty-five thousand, four hundred twenty-seven".