25490037 has 4 divisors (see below), whose sum is σ = 33986720. Its totient is φ = 16993356.

The previous prime is 25490033. The next prime is 25490041. The reversal of 25490037 is 73009452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (25490033) and next prime (25490041).

It is not a de Polignac number, because 25490037 - 2² = 25490033 is a prime.

It is a super-2 number, since 2×25490037² = 1299483972522738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25489986 and 25490013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25490033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4248337 + ... + 4248342.

It is an arithmetic number, because the mean of its divisors is an integer number (8496680).

Almost surely, 2^25490037 is an apocalyptic number.

It is an amenable number.

25490037 is a deficient number, since it is larger than the sum of its proper divisors (8496683).

25490037 is an equidigital number, since it uses as much as digits as its factorization.

25490037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8496682.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 25490037 is about 5048.7658888089. The cubic root of 25490037 is about 294.2999276201.

Adding to 25490037 its reverse (73009452), we get a palindrome (98499489).

The spelling of 25490037 in words is "twenty-five million, four hundred ninety thousand, thirty-seven".