425521045 has 16 divisors (see below), whose sum is σ = 535796352. Its totient is φ = 323801280.

The previous prime is 425521037. The next prime is 425521051. The reversal of 425521045 is 540125524.

It is not a de Polignac number, because 425521045 - 2³ = 425521037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10594 + ... + 31036.

It is an arithmetic number, because the mean of its divisors is an integer number (33487272).

Almost surely, 2^425521045 is an apocalyptic number.

It is an amenable number.

425521045 is a deficient number, since it is larger than the sum of its proper divisors (110275307).

425521045 is a wasteful number, since it uses less digits than its factorization.

425521045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20652.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 425521045 is about 20628.1614546716. The cubic root of 425521045 is about 752.1544246062.

Adding to 425521045 its reverse (540125524), we get a palindrome (965646569).

The spelling of 425521045 in words is "four hundred twenty-five million, five hundred twenty-one thousand, forty-five".