3502252025021 has 4 divisors (see below), whose sum is σ = 3503895505344. Its totient is φ = 3500608544700.

The previous prime is 3502252024991. The next prime is 3502252025053. The reversal of 3502252025021 is 1205202522053.

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.

It is a cyclic number.

It is not a de Polignac number, because 3502252025021 - 2¹⁴ = 3502252008637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3502252025621) 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, 821736965 + ... + 821741226.

It is an arithmetic number, because the mean of its divisors is an integer number (875973876336).

Almost surely, 2^{3502252025021} is an apocalyptic number.

It is an amenable number.

3502252025021 is a deficient number, since it is larger than the sum of its proper divisors (1643480323).

3502252025021 is a wasteful number, since it uses less digits than its factorization.

3502252025021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643480322.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 3502252025021 its reverse (1205202522053), we get a palindrome (4707454547074).

The spelling of 3502252025021 in words is "three trillion, five hundred two billion, two hundred fifty-two million, twenty-five thousand, twenty-one".