25454101 has 2 divisors, whose sum is σ = 25454102. Its totient is φ = 25454100.

The previous prime is 25454087. The next prime is 25454111. The reversal of 25454101 is 10145452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21169201 + 4284900 = 4601^2 + 2070^2 .

It is a cyclic number.

It is not a de Polignac number, because 25454101 - 2¹³ = 25445909 is a prime.

It is a super-2 number, since 2×25454101² = 1295822515436402, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25454111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12727050 + 12727051.

It is an arithmetic number, because the mean of its divisors is an integer number (12727051).

Almost surely, 2^25454101 is an apocalyptic number.

It is an amenable number.

25454101 is a deficient number, since it is larger than the sum of its proper divisors (1).

25454101 is an equidigital number, since it uses as much as digits as its factorization.

25454101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 25454101 is about 5045.2057440703. The cubic root of 25454101 is about 294.1615606690.

Adding to 25454101 its reverse (10145452), we get a palindrome (35599553).

The spelling of 25454101 in words is "twenty-five million, four hundred fifty-four thousand, one hundred one".