425039291 has 4 divisors (see below), whose sum is σ = 447409800. Its totient is φ = 402668784.

The previous prime is 425039281. The next prime is 425039309. The reversal of 425039291 is 192930524.

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 425039291 - 2⁶ = 425039227 is a prime.

It is a super-3 number, since 3×425039291³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425039201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11185226 + ... + 11185263.

It is an arithmetic number, because the mean of its divisors is an integer number (111852450).

Almost surely, 2^425039291 is an apocalyptic number.

425039291 is a deficient number, since it is larger than the sum of its proper divisors (22370509).

425039291 is a wasteful number, since it uses less digits than its factorization.

425039291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22370508.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 425039291 is about 20616.4810527888. The cubic root of 425039291 is about 751.8704666687.

The spelling of 425039291 in words is "four hundred twenty-five million, thirty-nine thousand, two hundred ninety-one".