4202544425 has 24 divisors (see below), whose sum is σ = 5406450840. Its totient is φ = 3236710400.

The previous prime is 4202544421. The next prime is 4202544473. The reversal of 4202544425 is 5244452024.

It can be written as a sum of positive squares in 12 ways, for example, as 2629946089 + 1572598336 = 51283^2 + 39656^2 .

It is not a de Polignac number, because 4202544425 - 2² = 4202544421 is a prime.

It is a super-2 number, since 2×4202544425² = 35322759288197161250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4202544391 and 4202544400.

It is not an unprimeable number, because it can be changed into a prime (4202544421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247715 + ... + 264135.

It is an arithmetic number, because the mean of its divisors is an integer number (225268785).

Almost surely, 2^4202544425 is an apocalyptic number.

It is an amenable number.

4202544425 is a deficient number, since it is larger than the sum of its proper divisors (1203906415).

4202544425 is a wasteful number, since it uses less digits than its factorization.

4202544425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16813 (or 16808 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

The square root of 4202544425 is about 64827.0346769000. The cubic root of 4202544425 is about 1613.7543936003.

Adding to 4202544425 its reverse (5244452024), we get a palindrome (9446996449).

The spelling of 4202544425 in words is "four billion, two hundred two million, five hundred forty-four thousand, four hundred twenty-five".