25451233 has 2 divisors, whose sum is σ = 25451234. Its totient is φ = 25451232.

The previous prime is 25451219. The next prime is 25451249. The reversal of 25451233 is 33215452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24830289 + 620944 = 4983^2 + 788^2 .

It is a cyclic number.

It is not a de Polignac number, because 25451233 - 2²¹ = 23354081 is a prime.

It is a super-2 number, since 2×25451233² = 1295530522440578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25451198 and 25451207.

It is not a weakly prime, because it can be changed into another prime (25451263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12725616 + 12725617.

It is an arithmetic number, because the mean of its divisors is an integer number (12725617).

Almost surely, 2^25451233 is an apocalyptic number.

It is an amenable number.

25451233 is a deficient number, since it is larger than the sum of its proper divisors (1).

25451233 is an equidigital number, since it uses as much as digits as its factorization.

25451233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 25.

The square root of 25451233 is about 5044.9215058314. The cubic root of 25451233 is about 294.1505121933.

Adding to 25451233 its reverse (33215452), we get a palindrome (58666685).

The spelling of 25451233 in words is "twenty-five million, four hundred fifty-one thousand, two hundred thirty-three".