3553400861 has 2 divisors, whose sum is σ = 3553400862. Its totient is φ = 3553400860.

The previous prime is 3553400821. The next prime is 3553400867. The reversal of 3553400861 is 1680043553.

3553400861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3552875236 + 525625 = 59606^2 + 725^2 .

It is an emirp because it is prime and its reverse (1680043553) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3553400861 - 2¹⁴ = 3553384477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3553400867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1776700430 + 1776700431.

It is an arithmetic number, because the mean of its divisors is an integer number (1776700431).

Almost surely, 2^3553400861 is an apocalyptic number.

It is an amenable number.

3553400861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3553400861 is an equidigital number, since it uses as much as digits as its factorization.

3553400861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 3553400861 is about 59610.4089987646. The cubic root of 3553400861 is about 1525.9772807434.

The spelling of 3553400861 in words is "three billion, five hundred fifty-three million, four hundred thousand, eight hundred sixty-one".