425011521 has 8 divisors (see below), whose sum is σ = 618198624. Its totient is φ = 257582720.

The previous prime is 425011511. The next prime is 425011529. The reversal of 425011521 is 125110524.

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 425011521 - 2⁹ = 425011009 is a prime.

It is a super-3 number, since 3×425011521³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (425011529) 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, 6439536 + ... + 6439601.

It is an arithmetic number, because the mean of its divisors is an integer number (77274828).

Almost surely, 2^425011521 is an apocalyptic number.

It is an amenable number.

425011521 is a deficient number, since it is larger than the sum of its proper divisors (193187103).

425011521 is a wasteful number, since it uses less digits than its factorization.

425011521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12879151.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 425011521 is about 20615.8075514883. The cubic root of 425011521 is about 751.8540917923.

The spelling of 425011521 in words is "four hundred twenty-five million, eleven thousand, five hundred twenty-one".