10455561 has 24 divisors (see below), whose sum is σ = 16589664. Its totient is φ = 6557760.

The previous prime is 10455553. The next prime is 10455589. The reversal of 10455561 is 16555401.

It is a happy number.

10455561 is a `hidden beast` number, since 104 + 5 + 556 + 1 = 666.

It is not a de Polignac number, because 10455561 - 2³ = 10455553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10455541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2866 + ... + 5396.

It is an arithmetic number, because the mean of its divisors is an integer number (691236).

Almost surely, 2^10455561 is an apocalyptic number.

It is an amenable number.

10455561 is a deficient number, since it is larger than the sum of its proper divisors (6134103).

10455561 is an equidigital number, since it uses as much as digits as its factorization.

10455561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563 (or 2551 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 10455561 is about 3233.5059919536. The cubic root of 10455561 is about 218.6665972119. Note that the first 3 decimals are identical.

The spelling of 10455561 in words is "ten million, four hundred fifty-five thousand, five hundred sixty-one".