531425505405 has 16 divisors (see below), whose sum is σ = 851060193984. Its totient is φ = 283167141120.

The previous prime is 531425505361. The next prime is 531425505421. The reversal of 531425505405 is 504505524135.

It is not a de Polignac number, because 531425505405 - 2⁹ = 531425504893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16220284 + ... + 16253013.

It is an arithmetic number, because the mean of its divisors is an integer number (53191262124).

Almost surely, 2^531425505405 is an apocalyptic number.

It is an amenable number.

531425505405 is a deficient number, since it is larger than the sum of its proper divisors (319634688579).

531425505405 is a wasteful number, since it uses less digits than its factorization.

531425505405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32474396.

The product of its (nonzero) digits is 300000, while the sum is 39.

The spelling of 531425505405 in words is "five hundred thirty-one billion, four hundred twenty-five million, five hundred five thousand, four hundred five".