425535069 has 4 divisors (see below), whose sum is σ = 567380096. Its totient is φ = 283690044.

The previous prime is 425535049. The next prime is 425535073. The reversal of 425535069 is 960535524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 425535069 - 2¹⁷ = 425403997 is a prime.

It is a super-2 number, since 2×425535069² = 362160189897669522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425535049) 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, 70922509 + ... + 70922514.

It is an arithmetic number, because the mean of its divisors is an integer number (141845024).

Almost surely, 2^425535069 is an apocalyptic number.

It is an amenable number.

425535069 is a deficient number, since it is larger than the sum of its proper divisors (141845027).

425535069 is a wasteful number, since it uses less digits than its factorization.

425535069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141845026.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 425535069 is about 20628.5013755241. The cubic root of 425535069 is about 752.1626874939.

The spelling of 425535069 in words is "four hundred twenty-five million, five hundred thirty-five thousand, sixty-nine".