2535521238 has 16 divisors (see below), whose sum is σ = 5634491760. Its totient is φ = 845173728.

The previous prime is 2535521231. The next prime is 2535521239. The reversal of 2535521238 is 8321255352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2535521231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23476995 + ... + 23477102.

It is an arithmetic number, because the mean of its divisors is an integer number (352155735).

Almost surely, 2^2535521238 is an apocalyptic number.

2535521238 is an abundant number, since it is smaller than the sum of its proper divisors (3098970522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2535521238 is a wasteful number, since it uses less digits than its factorization.

2535521238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46954108 (or 46954102 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 2535521238 is about 50353.9595066763. The cubic root of 2535521238 is about 1363.6065673998.

The spelling of 2535521238 in words is "two billion, five hundred thirty-five million, five hundred twenty-one thousand, two hundred thirty-eight".