425122521 has 8 divisors (see below), whose sum is σ = 566954784. Its totient is φ = 283352640.

The previous prime is 425122507. The next prime is 425122573. The reversal of 425122521 is 125221524.

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

It is not a de Polignac number, because 425122521 - 2⁶ = 425122457 is a prime.

It is a super-2 number, since 2×425122521² = 361458315722790882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 425122491 and 425122500.

It is not an unprimeable number, because it can be changed into a prime (425122421) 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 7 ways as a sum of consecutive naturals, for example, 3730 + ... + 29396.

It is an arithmetic number, because the mean of its divisors is an integer number (70869348).

Almost surely, 2^425122521 is an apocalyptic number.

It is an amenable number.

425122521 is a deficient number, since it is larger than the sum of its proper divisors (141832263).

425122521 is a wasteful number, since it uses less digits than its factorization.

425122521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31191.

The product of its digits is 1600, while the sum is 24.

The square root of 425122521 is about 20618.4994846861. The cubic root of 425122521 is about 751.9195398533.

The spelling of 425122521 in words is "four hundred twenty-five million, one hundred twenty-two thousand, five hundred twenty-one".