2535241621 has 4 divisors (see below), whose sum is σ = 2765718144. Its totient is φ = 2304765100.

The previous prime is 2535241613. The next prime is 2535241627. The reversal of 2535241621 is 1261425352.

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 not a de Polignac number, because 2535241621 - 2³ = 2535241613 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2535241627) 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, 115238245 + ... + 115238266.

It is an arithmetic number, because the mean of its divisors is an integer number (691429536).

Almost surely, 2^2535241621 is an apocalyptic number.

It is an amenable number.

2535241621 is a deficient number, since it is larger than the sum of its proper divisors (230476523).

2535241621 is a wasteful number, since it uses less digits than its factorization.

2535241621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230476522.

The product of its digits is 14400, while the sum is 31.

The square root of 2535241621 is about 50351.1829155979. The cubic root of 2535241621 is about 1363.5564394303.

Adding to 2535241621 its reverse (1261425352), we get a palindrome (3796666973).

The spelling of 2535241621 in words is "two billion, five hundred thirty-five million, two hundred forty-one thousand, six hundred twenty-one".