3625254121 has 4 divisors (see below), whose sum is σ = 3625692544. Its totient is φ = 3624815700.

The previous prime is 3625254103. The next prime is 3625254197. The reversal of 3625254121 is 1214525263.

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 3625254121 - 2⁹ = 3625253609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3625254221) 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, 206565 + ... + 223426.

It is an arithmetic number, because the mean of its divisors is an integer number (906423136).

Almost surely, 2^3625254121 is an apocalyptic number.

It is an amenable number.

3625254121 is a deficient number, since it is larger than the sum of its proper divisors (438423).

3625254121 is an equidigital number, since it uses as much as digits as its factorization.

3625254121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438422.

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

The square root of 3625254121 is about 60210.0832170161. The cubic root of 3625254121 is about 1536.1943081064.

Adding to 3625254121 its reverse (1214525263), we get a palindrome (4839779384).

The spelling of 3625254121 in words is "three billion, six hundred twenty-five million, two hundred fifty-four thousand, one hundred twenty-one".