425589506 has 4 divisors (see below), whose sum is σ = 638384262. Its totient is φ = 212794752.

The previous prime is 425589499. The next prime is 425589517. The reversal of 425589506 is 605985524.

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

It can be written as a sum of positive squares in only one way, i.e., 423989281 + 1600225 = 20591^2 + 1265^2 .

It is a super-2 number, since 2×425589506² = 362252855234648072, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106397375 + ... + 106397378.

Almost surely, 2^425589506 is an apocalyptic number.

425589506 is a deficient number, since it is larger than the sum of its proper divisors (212794756).

425589506 is a wasteful number, since it uses less digits than its factorization.

425589506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212794755.

The product of its (nonzero) digits is 432000, while the sum is 44.

The square root of 425589506 is about 20629.8207941804. The cubic root of 425589506 is about 752.1947598481.

The spelling of 425589506 in words is "four hundred twenty-five million, five hundred eighty-nine thousand, five hundred six".