25520106 has 8 divisors (see below), whose sum is σ = 51040224. Its totient is φ = 8506700.

The previous prime is 25520071. The next prime is 25520123. The reversal of 25520106 is 60102552.

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

25520106 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2126670 + ... + 2126681.

It is an arithmetic number, because the mean of its divisors is an integer number (6380028).

Almost surely, 2^25520106 is an apocalyptic number.

25520106 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25520106 is a wasteful number, since it uses less digits than its factorization.

25520106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253356.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 25520106 is about 5051.7428675656. The cubic root of 25520106 is about 294.4156045432.

Adding to 25520106 its reverse (60102552), we get a palindrome (85622658).

The spelling of 25520106 in words is "twenty-five million, five hundred twenty thousand, one hundred six".