525155923 has 2 divisors, whose sum is σ = 525155924. Its totient is φ = 525155922.

The previous prime is 525155909. The next prime is 525155929. The reversal of 525155923 is 329551525.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525155923 is a prime.

It is not a weakly prime, because it can be changed into another prime (525155929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262577961 + 262577962.

It is an arithmetic number, because the mean of its divisors is an integer number (262577962).

Almost surely, 2^525155923 is an apocalyptic number.

525155923 is a deficient number, since it is larger than the sum of its proper divisors (1).

525155923 is an equidigital number, since it uses as much as digits as its factorization.

525155923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67500, while the sum is 37.

The square root of 525155923 is about 22916.2807409929. The cubic root of 525155923 is about 806.7941788008.

The spelling of 525155923 in words is "five hundred twenty-five million, one hundred fifty-five thousand, nine hundred twenty-three".