425521044 has 54 divisors (see below), whose sum is σ = 1164744126. Its totient is φ = 130927680.

The previous prime is 425521037. The next prime is 425521051. The reversal of 425521044 is 440125524.

425521044 is a `hidden beast` number, since 4 + 2 + 552 + 104 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (425521037) and next prime (425521051).

It can be written as a sum of positive squares in 3 ways, for example, as 21511044 + 404010000 = 4638^2 + 20100^2 .

It is a junction number, because it is equal to n+sod(n) for n = 425520999 and 425521017.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 28887 + ... + 41054.

Almost surely, 2^425521044 is an apocalyptic number.

It is an amenable number.

425521044 is an abundant number, since it is smaller than the sum of its proper divisors (739223082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425521044 is a wasteful number, since it uses less digits than its factorization.

425521044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69977 (or 69959 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 425521044 is about 20628.1614304329. The cubic root of 425521044 is about 752.1544240170.

Adding to 425521044 its reverse (440125524), we get a palindrome (865646568).

The spelling of 425521044 in words is "four hundred twenty-five million, five hundred twenty-one thousand, forty-four".