3625101421 has 8 divisors (see below), whose sum is σ = 3644948664. Its totient is φ = 3605299200.

The previous prime is 3625101407. The next prime is 3625101449. The reversal of 3625101421 is 1241015263.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1904013225 + 1721088196 = 43635^2 + 41486^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3625101421 - 2²⁵ = 3591546989 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 (3625101451) 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, 157021 + ... + 178621.

It is an arithmetic number, because the mean of its divisors is an integer number (455618583).

Almost surely, 2^3625101421 is an apocalyptic number.

It is an amenable number.

3625101421 is a deficient number, since it is larger than the sum of its proper divisors (19847243).

3625101421 is a wasteful number, since it uses less digits than its factorization.

3625101421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22511.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 3625101421 is about 60208.8151436316. The cubic root of 3625101421 is about 1536.1727390286.

Adding to 3625101421 its reverse (1241015263), we get a palindrome (4866116684).

The spelling of 3625101421 in words is "three billion, six hundred twenty-five million, one hundred one thousand, four hundred twenty-one".