507905423 has 2 divisors, whose sum is σ = 507905424. Its totient is φ = 507905422.

The previous prime is 507905399. The next prime is 507905479. The reversal of 507905423 is 324509705.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-507905423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (507905323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253952711 + 253952712.

It is an arithmetic number, because the mean of its divisors is an integer number (253952712).

Almost surely, 2^507905423 is an apocalyptic number.

507905423 is a deficient number, since it is larger than the sum of its proper divisors (1).

507905423 is an equidigital number, since it uses as much as digits as its factorization.

507905423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 507905423 is about 22536.7571535924. The cubic root of 507905423 is about 797.8616974826.

The spelling of 507905423 in words is "five hundred seven million, nine hundred five thousand, four hundred twenty-three".