25075537 has 2 divisors, whose sum is σ = 25075538. Its totient is φ = 25075536.

The previous prime is 25075511. The next prime is 25075549. The reversal of 25075537 is 73557052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25010001 + 65536 = 5001^2 + 256^2 .

It is a cyclic number.

It is not a de Polignac number, because 25075537 - 2⁷ = 25075409 is a prime.

It is not a weakly prime, because it can be changed into another prime (25075577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12537768 + 12537769.

It is an arithmetic number, because the mean of its divisors is an integer number (12537769).

Almost surely, 2^25075537 is an apocalyptic number.

It is an amenable number.

25075537 is a deficient number, since it is larger than the sum of its proper divisors (1).

25075537 is an equidigital number, since it uses as much as digits as its factorization.

25075537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36750, while the sum is 34.

The square root of 25075537 is about 5007.5480027654. The cubic root of 25075537 is about 292.6959730847.

The spelling of 25075537 in words is "twenty-five million, seventy-five thousand, five hundred thirty-seven".