25885537 has 2 divisors, whose sum is σ = 25885538. Its totient is φ = 25885536.

The previous prime is 25885529. The next prime is 25885549. The reversal of 25885537 is 73558852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24443136 + 1442401 = 4944^2 + 1201^2 .

It is a cyclic number.

It is not a de Polignac number, because 25885537 - 2³ = 25885529 is a prime.

It is a super-2 number, since 2×25885537² = 1340122051556738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25885493 and 25885502.

It is not a weakly prime, because it can be changed into another prime (25885507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12942768 + 12942769.

It is an arithmetic number, because the mean of its divisors is an integer number (12942769).

Almost surely, 2^25885537 is an apocalyptic number.

It is an amenable number.

25885537 is a deficient number, since it is larger than the sum of its proper divisors (1).

25885537 is an equidigital number, since it uses as much as digits as its factorization.

25885537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336000, while the sum is 43.

The square root of 25885537 is about 5087.7831125157. The cubic root of 25885537 is about 295.8142286060.

The spelling of 25885537 in words is "twenty-five million, eight hundred eighty-five thousand, five hundred thirty-seven".