25130023381 has 2 divisors, whose sum is σ = 25130023382. Its totient is φ = 25130023380.

The previous prime is 25130023337. The next prime is 25130023411. The reversal of 25130023381 is 18332003152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22101282225 + 3028741156 = 148665^2 + 55034^2 .

It is a cyclic number.

It is not a de Polignac number, because 25130023381 - 2⁷ = 25130023253 is a prime.

It is a super-2 number, since 2×25130023381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25130023301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12565011690 + 12565011691.

It is an arithmetic number, because the mean of its divisors is an integer number (12565011691).

Almost surely, 2^25130023381 is an apocalyptic number.

It is an amenable number.

25130023381 is a deficient number, since it is larger than the sum of its proper divisors (1).

25130023381 is an equidigital number, since it uses as much as digits as its factorization.

25130023381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 25130023381 in words is "twenty-five billion, one hundred thirty million, twenty-three thousand, three hundred eighty-one".