3572305649 has 4 divisors (see below), whose sum is σ = 3897060720. Its totient is φ = 3247550580.

The previous prime is 3572305643. The next prime is 3572305703. The reversal of 3572305649 is 9465032753.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9465032753 = 11 ⋅860457523.

It is a cyclic number.

It is not a de Polignac number, because 3572305649 - 2²⁴ = 3555528433 is a prime.

It is a super-2 number, since 2×3572305649² = 25522735299754622402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3572305643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162377519 + ... + 162377540.

It is an arithmetic number, because the mean of its divisors is an integer number (974265180).

Almost surely, 2^3572305649 is an apocalyptic number.

It is an amenable number.

3572305649 is a deficient number, since it is larger than the sum of its proper divisors (324755071).

3572305649 is a wasteful number, since it uses less digits than its factorization.

3572305649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324755070.

The product of its (nonzero) digits is 680400, while the sum is 44.

The square root of 3572305649 is about 59768.7681736875. The cubic root of 3572305649 is about 1528.6786616922.

The spelling of 3572305649 in words is "three billion, five hundred seventy-two million, three hundred five thousand, six hundred forty-nine".