10025561 has 24 divisors (see below), whose sum is σ = 12876864. Its totient is φ = 7600320.

The previous prime is 10025551. The next prime is 10025567. The reversal of 10025561 is 16552001.

It is not a de Polignac number, because 10025561 - 2⁶ = 10025497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10025567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76466 + ... + 76596.

It is an arithmetic number, because the mean of its divisors is an integer number (536536).

Almost surely, 2^10025561 is an apocalyptic number.

It is an amenable number.

10025561 is a deficient number, since it is larger than the sum of its proper divisors (2851303).

10025561 is a wasteful number, since it uses less digits than its factorization.

10025561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 10025561 is about 3166.3166297766. The cubic root of 10025561 is about 215.6268778384.

Adding to 10025561 its reverse (16552001), we get a palindrome (26577562).

The spelling of 10025561 in words is "ten million, twenty-five thousand, five hundred sixty-one".