425577279 has 4 divisors (see below), whose sum is σ = 567436376. Its totient is φ = 283718184.

The previous prime is 425577259. The next prime is 425577301. The reversal of 425577279 is 972775524.

It is a happy number.

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

It is not a de Polignac number, because 425577279 - 2⁵ = 425577247 is a prime.

It is a super-2 number, since 2×425577279² = 362232040802087682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425577239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70929544 + ... + 70929549.

It is an arithmetic number, because the mean of its divisors is an integer number (141859094).

Almost surely, 2^425577279 is an apocalyptic number.

425577279 is a deficient number, since it is larger than the sum of its proper divisors (141859097).

425577279 is a wasteful number, since it uses less digits than its factorization.

425577279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141859096.

The product of its digits is 1234800, while the sum is 48.

The square root of 425577279 is about 20629.5244491966. The cubic root of 425577279 is about 752.1875563705.

The spelling of 425577279 in words is "four hundred twenty-five million, five hundred seventy-seven thousand, two hundred seventy-nine".