25120101 has 8 divisors (see below), whose sum is σ = 35463744. Its totient is φ = 15761600.

The previous prime is 25120091. The next prime is 25120111. The reversal of 25120101 is 10102152.

It is an interprime number because it is at equal distance from previous prime (25120091) and next prime (25120111).

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

It is a cyclic number.

It is not a de Polignac number, because 25120101 - 2⁶ = 25120037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25120111) 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, 246225 + ... + 246326.

It is an arithmetic number, because the mean of its divisors is an integer number (4432968).

Almost surely, 2^25120101 is an apocalyptic number.

It is an amenable number.

25120101 is a deficient number, since it is larger than the sum of its proper divisors (10343643).

25120101 is a wasteful number, since it uses less digits than its factorization.

25120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492571.

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

The square root of 25120101 is about 5011.9957102935. The cubic root of 25120101 is about 292.8692626128.

Adding to 25120101 its reverse (10102152), we get a palindrome (35222253).

The spelling of 25120101 in words is "twenty-five million, one hundred twenty thousand, one hundred one".