25050401 has 4 divisors (see below), whose sum is σ = 26523972. Its totient is φ = 23576832.

The previous prime is 25050383. The next prime is 25050407. The reversal of 25050401 is 10405052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13653025 + 11397376 = 3695^2 + 3376^2 .

It is a cyclic number.

It is not a de Polignac number, because 25050401 - 2¹⁴ = 25034017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 1473553 = 25050401 / (2 + 5 + 0 + 5 + 0 + 4 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25050401.

It is not an unprimeable number, because it can be changed into a prime (25050407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 736760 + ... + 736793.

It is an arithmetic number, because the mean of its divisors is an integer number (6630993).

Almost surely, 2^25050401 is an apocalyptic number.

It is an amenable number.

25050401 is a deficient number, since it is larger than the sum of its proper divisors (1473571).

25050401 is a wasteful number, since it uses less digits than its factorization.

25050401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473570.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 25050401 is about 5005.0375622966. The cubic root of 25050401 is about 292.5981398105.

Adding to 25050401 its reverse (10405052), we get a palindrome (35455453).

The spelling of 25050401 in words is "twenty-five million, fifty thousand, four hundred one".