10987553 has 2 divisors, whose sum is σ = 10987554. Its totient is φ = 10987552.

The previous prime is 10987541. The next prime is 10987579. The reversal of 10987553 is 35578901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10804369 + 183184 = 3287^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 10987553 - 2¹⁸ = 10725409 is a prime.

It is not a weakly prime, because it can be changed into another prime (10987513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5493776 + 5493777.

It is an arithmetic number, because the mean of its divisors is an integer number (5493777).

Almost surely, 2^10987553 is an apocalyptic number.

It is an amenable number.

10987553 is a deficient number, since it is larger than the sum of its proper divisors (1).

10987553 is an equidigital number, since it uses as much as digits as its factorization.

10987553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 10987553 is about 3314.7478033781. The cubic root of 10987553 is about 222.3140929119.

The spelling of 10987553 in words is "ten million, nine hundred eighty-seven thousand, five hundred fifty-three".