425111921 has 8 divisors (see below), whose sum is σ = 477718080. Its totient is φ = 375349392.

The previous prime is 425111917. The next prime is 425111927. The reversal of 425111921 is 129111524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425111921 - 2² = 425111917 is a prime.

It is a super-3 number, since 3×425111921³ (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 (425111927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710591 + ... + 711188.

It is an arithmetic number, because the mean of its divisors is an integer number (59714760).

Almost surely, 2^425111921 is an apocalyptic number.

It is an amenable number.

425111921 is a deficient number, since it is larger than the sum of its proper divisors (52606159).

425111921 is a wasteful number, since it uses less digits than its factorization.

425111921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421815.

The product of its digits is 720, while the sum is 26.

The square root of 425111921 is about 20618.2424323704. The cubic root of 425111921 is about 751.9132903503.

The spelling of 425111921 in words is "four hundred twenty-five million, one hundred eleven thousand, nine hundred twenty-one".