25020413653 has 2 divisors, whose sum is σ = 25020413654. Its totient is φ = 25020413652.

The previous prime is 25020413647. The next prime is 25020413683. The reversal of 25020413653 is 35631402052.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21882397329 + 3138016324 = 147927^2 + 56018^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25020413653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25020413683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12510206826 + 12510206827.

It is an arithmetic number, because the mean of its divisors is an integer number (12510206827).

Almost surely, 2^25020413653 is an apocalyptic number.

It is an amenable number.

25020413653 is a deficient number, since it is larger than the sum of its proper divisors (1).

25020413653 is an equidigital number, since it uses as much as digits as its factorization.

25020413653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 25020413653 in words is "twenty-five billion, twenty million, four hundred thirteen thousand, six hundred fifty-three".