25201667 has 24 divisors (see below), whose sum is σ = 28882560. Its totient is φ = 21934080.

The previous prime is 25201661. The next prime is 25201681. The reversal of 25201667 is 76610252.

It is not a de Polignac number, because 25201667 - 2⁸ = 25201411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25201661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259763 + ... + 259859.

It is an arithmetic number, because the mean of its divisors is an integer number (1203440).

Almost surely, 2^25201667 is an apocalyptic number.

25201667 is a deficient number, since it is larger than the sum of its proper divisors (3680893).

25201667 is a wasteful number, since it uses less digits than its factorization.

25201667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 25201667 is about 5020.1261936330. The cubic root of 25201667 is about 293.1859063174.

The spelling of 25201667 in words is "twenty-five million, two hundred one thousand, six hundred sixty-seven".