425517167 has 4 divisors (see below), whose sum is σ = 425866320. Its totient is φ = 425168016.

The previous prime is 425517163. The next prime is 425517173. The reversal of 425517167 is 761715524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425517167 - 2² = 425517163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425517167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425517163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172742 + ... + 175187.

It is an arithmetic number, because the mean of its divisors is an integer number (106466580).

Almost surely, 2^425517167 is an apocalyptic number.

425517167 is a deficient number, since it is larger than the sum of its proper divisors (349153).

425517167 is a wasteful number, since it uses less digits than its factorization.

425517167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349152.

The product of its digits is 58800, while the sum is 38.

The square root of 425517167 is about 20628.0674567445. The cubic root of 425517167 is about 752.1521396713.

The spelling of 425517167 in words is "four hundred twenty-five million, five hundred seventeen thousand, one hundred sixty-seven".