425010521 has 4 divisors (see below), whose sum is σ = 457703652. Its totient is φ = 392317392.

The previous prime is 425010517. The next prime is 425010529. The reversal of 425010521 is 125010524.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36132121 + 388878400 = 6011^2 + 19720^2 .

It is a cyclic number.

It is not a de Polignac number, because 425010521 - 2² = 425010517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425010493 and 425010502.

It is not an unprimeable number, because it can be changed into a prime (425010529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16346546 + ... + 16346571.

It is an arithmetic number, because the mean of its divisors is an integer number (114425913).

Almost surely, 2^425010521 is an apocalyptic number.

It is an amenable number.

425010521 is a deficient number, since it is larger than the sum of its proper divisors (32693131).

425010521 is a wasteful number, since it uses less digits than its factorization.

425010521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32693130.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 425010521 is about 20615.7832982402. The cubic root of 425010521 is about 751.8535021183.

The spelling of 425010521 in words is "four hundred twenty-five million, ten thousand, five hundred twenty-one".