25134481 has 2 divisors, whose sum is σ = 25134482. Its totient is φ = 25134480.

The previous prime is 25134463. The next prime is 25134493. The reversal of 25134481 is 18443152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20657025 + 4477456 = 4545^2 + 2116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25134481 is a prime.

It is a super-2 number, since 2×25134481² = 1263484270278722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25134281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12567240 + 12567241.

It is an arithmetic number, because the mean of its divisors is an integer number (12567241).

Almost surely, 2^25134481 is an apocalyptic number.

It is an amenable number.

25134481 is a deficient number, since it is larger than the sum of its proper divisors (1).

25134481 is an equidigital number, since it uses as much as digits as its factorization.

25134481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 28.

The square root of 25134481 is about 5013.4300633399. The cubic root of 25134481 is about 292.9251362819.

The spelling of 25134481 in words is "twenty-five million, one hundred thirty-four thousand, four hundred eighty-one".