3523504421 has 2 divisors, whose sum is σ = 3523504422. Its totient is φ = 3523504420.

The previous prime is 3523504357. The next prime is 3523504427. The reversal of 3523504421 is 1244053253.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3301077025 + 222427396 = 57455^2 + 14914^2 .

It is a cyclic number.

It is not a de Polignac number, because 3523504421 - 2⁶ = 3523504357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3523504427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1761752210 + 1761752211.

It is an arithmetic number, because the mean of its divisors is an integer number (1761752211).

Almost surely, 2^3523504421 is an apocalyptic number.

It is an amenable number.

3523504421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3523504421 is an equidigital number, since it uses as much as digits as its factorization.

3523504421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 3523504421 is about 59359.1140516770. The cubic root of 3523504421 is about 1521.6856330238.

Adding to 3523504421 its reverse (1244053253), we get a palindrome (4767557674).

The spelling of 3523504421 in words is "three billion, five hundred twenty-three million, five hundred four thousand, four hundred twenty-one".