2524252121 has 4 divisors (see below), whose sum is σ = 2524479972. Its totient is φ = 2524024272.

The previous prime is 2524252117. The next prime is 2524252141. The reversal of 2524252121 is 1212524252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1369000000 + 1155252121 = 37000^2 + 33989^2 .

It is a cyclic number.

It is not a de Polignac number, because 2524252121 - 2² = 2524252117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2524252111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96410 + ... + 119763.

It is an arithmetic number, because the mean of its divisors is an integer number (631119993).

Almost surely, 2^2524252121 is an apocalyptic number.

It is an amenable number.

2524252121 is a deficient number, since it is larger than the sum of its proper divisors (227851).

2524252121 is a wasteful number, since it uses less digits than its factorization.

2524252121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227850.

The product of its digits is 3200, while the sum is 26.

The square root of 2524252121 is about 50241.9358802982. The cubic root of 2524252121 is about 1361.5833852412.

Adding to 2524252121 its reverse (1212524252), we get a palindrome (3736776373).

The spelling of 2524252121 in words is "two billion, five hundred twenty-four million, two hundred fifty-two thousand, one hundred twenty-one".