4025533313421 has 10 divisors (see below), whose sum is σ = 6013450999182. Its totient is φ = 2683688875560.

The previous prime is 4025533313413. The next prime is 4025533313423. The reversal of 4025533313421 is 1243133355204.

4025533313421 is a `hidden beast` number, since 4 + 0 + 255 + 33 + 31 + 342 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2567730627396 + 1457802686025 = 1602414^2 + 1207395^2 .

It is not a de Polignac number, because 4025533313421 - 2³ = 4025533313413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4025533313423) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 24848970990 + ... + 24848971151.

Almost surely, 2^{4025533313421} is an apocalyptic number.

It is an amenable number.

4025533313421 is a deficient number, since it is larger than the sum of its proper divisors (1987917685761).

4025533313421 is an equidigital number, since it uses as much as digits as its factorization.

4025533313421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49697942153 (or 49697942144 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 4025533313421 its reverse (1243133355204), we get a palindrome (5268666668625).

The spelling of 4025533313421 in words is "four trillion, twenty-five billion, five hundred thirty-three million, three hundred thirteen thousand, four hundred twenty-one".