10001553 has 16 divisors (see below), whose sum is σ = 13789440. Its totient is φ = 6444416.

The previous prime is 10001533. The next prime is 10001567. The reversal of 10001553 is 35510001.

10001553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10001553 - 2⁵ = 10001521 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10001533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12151 + ... + 12947.

It is an arithmetic number, because the mean of its divisors is an integer number (861840).

Almost surely, 2^10001553 is an apocalyptic number.

It is an amenable number.

10001553 is a deficient number, since it is larger than the sum of its proper divisors (3787887).

10001553 is an equidigital number, since it uses as much as digits as its factorization.

10001553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 10001553 is about 3162.5232014959. The cubic root of 10001553 is about 215.4546212161.

Adding to 10001553 its product of nonzero digits (75), we get a triangular number (10001628 = T₄₄₇₂).

Adding to 10001553 its reverse (35510001), we get a palindrome (45511554).

The spelling of 10001553 in words is "ten million, one thousand, five hundred fifty-three".