25020105 has 16 divisors (see below), whose sum is σ = 43671744. Its totient is φ = 12130880.

The previous prime is 25020097. The next prime is 25020133. The reversal of 25020105 is 50102052.

It is not a de Polignac number, because 25020105 - 2³ = 25020097 is a prime.

It is a super-2 number, since 2×25020105² = 1252011308422050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75654 + ... + 75983.

It is an arithmetic number, because the mean of its divisors is an integer number (2729484).

Almost surely, 2^25020105 is an apocalyptic number.

It is an amenable number.

25020105 is a deficient number, since it is larger than the sum of its proper divisors (18651639).

25020105 is a wasteful number, since it uses less digits than its factorization.

25020105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151656.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 25020105 is about 5002.0100959514. The cubic root of 25020105 is about 292.4801359876.

Adding to 25020105 its reverse (50102052), we get a palindrome (75122157).

The spelling of 25020105 in words is "twenty-five million, twenty thousand, one hundred five".