25207401 has 8 divisors (see below), whose sum is σ = 33673504. Its totient is φ = 16773120.

The previous prime is 25207387. The next prime is 25207423. The reversal of 25207401 is 10470252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25207401 - 2²¹ = 23110249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25207801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6040 + ... + 9321.

It is an arithmetic number, because the mean of its divisors is an integer number (4209188).

Almost surely, 2^25207401 is an apocalyptic number.

It is an amenable number.

25207401 is a deficient number, since it is larger than the sum of its proper divisors (8466103).

25207401 is a wasteful number, since it uses less digits than its factorization.

25207401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15911.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 25207401 is about 5020.6972623332. The cubic root of 25207401 is about 293.2081403030.

Adding to 25207401 its reverse (10470252), we get a palindrome (35677653).

The spelling of 25207401 in words is "twenty-five million, two hundred seven thousand, four hundred one".