4521123425 has 72 divisors (see below), whose sum is σ = 7213897656. Its totient is φ = 2784015360.

The previous prime is 4521123401. The next prime is 4521123433. The reversal of 4521123425 is 5243211254.

It can be written as a sum of positive squares in 12 ways, for example, as 802928896 + 3718194529 = 28336^2 + 60977^2 .

It is not a de Polignac number, because 4521123425 - 2²⁸ = 4252687969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 585389 + ... + 593061.

It is an arithmetic number, because the mean of its divisors is an integer number (100193023).

Almost surely, 2^4521123425 is an apocalyptic number.

It is an amenable number.

4521123425 is a deficient number, since it is larger than the sum of its proper divisors (2692774231).

4521123425 is a wasteful number, since it uses less digits than its factorization.

4521123425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747 (or 7735 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 4521123425 is about 67239.2997063473. The cubic root of 4521123425 is about 1653.5428526595.

Adding to 4521123425 its reverse (5243211254), we get a palindrome (9764334679).

The spelling of 4521123425 in words is "four billion, five hundred twenty-one million, one hundred twenty-three thousand, four hundred twenty-five".