25350247 has 16 divisors (see below), whose sum is σ = 29084832. Its totient is φ = 21888000.

The previous prime is 25350211. The next prime is 25350251. The reversal of 25350247 is 74205352.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25350247 is a prime.

It is a super-2 number, since 2×25350247² = 1285270045922018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25350847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55243 + ... + 55699.

It is an arithmetic number, because the mean of its divisors is an integer number (1817802).

Almost surely, 2^25350247 is an apocalyptic number.

25350247 is a deficient number, since it is larger than the sum of its proper divisors (3734585).

25350247 is a wasteful number, since it uses less digits than its factorization.

25350247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 25350247 is about 5034.9028789044. The cubic root of 25350247 is about 293.7609507310.

Adding to 25350247 its reverse (74205352), we get a palindrome (99555599).

The spelling of 25350247 in words is "twenty-five million, three hundred fifty thousand, two hundred forty-seven".