25238737 has 2 divisors, whose sum is σ = 25238738. Its totient is φ = 25238736.

The previous prime is 25238713. The next prime is 25238749. The reversal of 25238737 is 73783252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21911761 + 3326976 = 4681^2 + 1824^2 .

It is a cyclic number.

It is not a de Polignac number, because 25238737 - 2¹⁵ = 25205969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25238696 and 25238705.

It is not a weakly prime, because it can be changed into another prime (25238767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12619368 + 12619369.

It is an arithmetic number, because the mean of its divisors is an integer number (12619369).

Almost surely, 2^25238737 is an apocalyptic number.

It is an amenable number.

25238737 is a deficient number, since it is larger than the sum of its proper divisors (1).

25238737 is an equidigital number, since it uses as much as digits as its factorization.

25238737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 37.

The square root of 25238737 is about 5023.8169751694. The cubic root of 25238737 is about 293.3295883073.

The spelling of 25238737 in words is "twenty-five million, two hundred thirty-eight thousand, seven hundred thirty-seven".