3542556521 has 16 divisors (see below), whose sum is σ = 4151347200. Its totient is φ = 2959962000.

The previous prime is 3542556487. The next prime is 3542556533. The reversal of 3542556521 is 1256552453.

It is a cyclic number.

It is not a de Polignac number, because 3542556521 - 2¹⁴ = 3542540137 is a prime.

It is a super-3 number, since 3×3542556521³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3542556541) 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, 61130 + ... + 104028.

It is an arithmetic number, because the mean of its divisors is an integer number (259459200).

Almost surely, 2^3542556521 is an apocalyptic number.

It is an amenable number.

3542556521 is a deficient number, since it is larger than the sum of its proper divisors (608790679).

3542556521 is a wasteful number, since it uses less digits than its factorization.

3542556521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43204.

The product of its digits is 180000, while the sum is 38.

The square root of 3542556521 is about 59519.3793734444. The cubic root of 3542556521 is about 1524.4233628891.

The spelling of 3542556521 in words is "three billion, five hundred forty-two million, five hundred fifty-six thousand, five hundred twenty-one".