3542564621 has 2 divisors, whose sum is σ = 3542564622. Its totient is φ = 3542564620.

The previous prime is 3542564609. The next prime is 3542564647. The reversal of 3542564621 is 1264652453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3239317225 + 303247396 = 56915^2 + 17414^2 .

It is a cyclic number.

It is not a de Polignac number, because 3542564621 - 2¹⁴ = 3542548237 is a prime.

It is a super-3 number, since 3×3542564621³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3542564321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1771282310 + 1771282311.

It is an arithmetic number, because the mean of its divisors is an integer number (1771282311).

Almost surely, 2^3542564621 is an apocalyptic number.

It is an amenable number.

3542564621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3542564621 is an equidigital number, since it uses as much as digits as its factorization.

3542564621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 38.

The square root of 3542564621 is about 59519.4474184699. The cubic root of 3542564621 is about 1524.4245247449.

The spelling of 3542564621 in words is "three billion, five hundred forty-two million, five hundred sixty-four thousand, six hundred twenty-one".