25537537 has 2 divisors, whose sum is σ = 25537538. Its totient is φ = 25537536.

The previous prime is 25537531. The next prime is 25537543. The reversal of 25537537 is 73573552.

It is a balanced prime because it is at equal distance from previous prime (25537531) and next prime (25537543).

It can be written as a sum of positive squares in only one way, i.e., 25310961 + 226576 = 5031^2 + 476^2 .

It is a cyclic number.

It is not a de Polignac number, because 25537537 - 2³ = 25537529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25537496 and 25537505.

It is not a weakly prime, because it can be changed into another prime (25537531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12768768 + 12768769.

It is an arithmetic number, because the mean of its divisors is an integer number (12768769).

Almost surely, 2^25537537 is an apocalyptic number.

It is an amenable number.

25537537 is a deficient number, since it is larger than the sum of its proper divisors (1).

25537537 is an equidigital number, since it uses as much as digits as its factorization.

25537537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110250, while the sum is 37.

The square root of 25537537 is about 5053.4678192307. The cubic root of 25537537 is about 294.4826208586.

The spelling of 25537537 in words is "twenty-five million, five hundred thirty-seven thousand, five hundred thirty-seven".