3500253643 has 4 divisors (see below), whose sum is σ = 3652438608. Its totient is φ = 3348068680.

The previous prime is 3500253623. The next prime is 3500253661. The reversal of 3500253643 is 3463520053.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3463520053 = 7 ⋅494788579.

It is a cyclic number.

It is not a de Polignac number, because 3500253643 - 2⁵ = 3500253611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3500253623) 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, 76092448 + ... + 76092493.

It is an arithmetic number, because the mean of its divisors is an integer number (913109652).

Almost surely, 2^3500253643 is an apocalyptic number.

3500253643 is a deficient number, since it is larger than the sum of its proper divisors (152184965).

3500253643 is a wasteful number, since it uses less digits than its factorization.

3500253643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152184964.

The product of its (nonzero) digits is 32400, while the sum is 31.

The square root of 3500253643 is about 59162.9414667662. The cubic root of 3500253643 is about 1518.3311616965.

Adding to 3500253643 its reverse (3463520053), we get a palindrome (6963773696).

The spelling of 3500253643 in words is "three billion, five hundred million, two hundred fifty-three thousand, six hundred forty-three".