103405506425 has 48 divisors (see below), whose sum is σ = 147105792960. Its totient is φ = 71470045440.

The previous prime is 103405506397. The next prime is 103405506427. The reversal of 103405506425 is 524605504301.

It is not a de Polignac number, because 103405506425 - 2²⁸ = 103137070969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103405506427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 411647 + ... + 613403.

It is an arithmetic number, because the mean of its divisors is an integer number (3064704020).

Almost surely, 2^103405506425 is an apocalyptic number.

It is an amenable number.

103405506425 is a deficient number, since it is larger than the sum of its proper divisors (43700286535).

103405506425 is a wasteful number, since it uses less digits than its factorization.

103405506425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201882 (or 201877 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 103405506425 in words is "one hundred three billion, four hundred five million, five hundred six thousand, four hundred twenty-five".