425053521 has 32 divisors (see below), whose sum is σ = 651593600. Its totient is φ = 273637440.

The previous prime is 425053507. The next prime is 425053529. The reversal of 425053521 is 125350524.

It is a happy number.

425053521 is a `hidden beast` number, since 42 + 50 + 53 + 521 = 666.

It is not a de Polignac number, because 425053521 - 2⁷ = 425053393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425053529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137331 + ... + 140391.

It is an arithmetic number, because the mean of its divisors is an integer number (20362300).

Almost surely, 2^425053521 is an apocalyptic number.

It is an amenable number.

425053521 is a deficient number, since it is larger than the sum of its proper divisors (226540079).

425053521 is a wasteful number, since it uses less digits than its factorization.

425053521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246 (or 3240 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 425053521 is about 20616.8261621424. The cubic root of 425053521 is about 751.8788572634.

The spelling of 425053521 in words is "four hundred twenty-five million, fifty-three thousand, five hundred twenty-one".