501425403923 has 2 divisors, whose sum is σ = 501425403924. Its totient is φ = 501425403922.

The previous prime is 501425403911. The next prime is 501425403931. The reversal of 501425403923 is 329304524105.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 501425403923 - 2⁸ = 501425403667 is a prime.

It is not a weakly prime, because it can be changed into another prime (501425402923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250712701961 + 250712701962.

It is an arithmetic number, because the mean of its divisors is an integer number (250712701962).

Almost surely, 2^501425403923 is an apocalyptic number.

501425403923 is a deficient number, since it is larger than the sum of its proper divisors (1).

501425403923 is an equidigital number, since it uses as much as digits as its factorization.

501425403923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 501425403923 in words is "five hundred one billion, four hundred twenty-five million, four hundred three thousand, nine hundred twenty-three".