25012101 has 8 divisors (see below), whose sum is σ = 33386560. Its totient is φ = 16656192.

The previous prime is 25012087. The next prime is 25012103. The reversal of 25012101 is 10121052.

Added to its reverse (10121052) it gives a triangular number (35133153 = T₈₃₈₂).

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

It is not a de Polignac number, because 25012101 - 2⁵ = 25012069 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25012103) 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, 1105 + ... + 7158.

It is an arithmetic number, because the mean of its divisors is an integer number (4173320).

Almost surely, 2^25012101 is an apocalyptic number.

It is an amenable number.

25012101 is a deficient number, since it is larger than the sum of its proper divisors (8374459).

25012101 is a wasteful number, since it uses less digits than its factorization.

25012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9275.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 25012101 is about 5001.2099536012. The cubic root of 25012101 is about 292.4489442628.

Adding to 25012101 its reverse (10121052), we get a palindrome (35133153).

The spelling of 25012101 in words is "twenty-five million, twelve thousand, one hundred one".