2252635421 has 16 divisors (see below), whose sum is σ = 2399284800. Its totient is φ = 2108880000.

The previous prime is 2252635409. The next prime is 2252635423. The reversal of 2252635421 is 1245362522.

It is a de Polignac number, because none of the positive numbers 2^k-2252635421 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 (2252635423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1551746 + ... + 1553196.

It is an arithmetic number, because the mean of its divisors is an integer number (149955300).

Almost surely, 2^2252635421 is an apocalyptic number.

It is an amenable number.

2252635421 is a deficient number, since it is larger than the sum of its proper divisors (146649379).

2252635421 is a wasteful number, since it uses less digits than its factorization.

2252635421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380.

The product of its digits is 28800, while the sum is 32.

The square root of 2252635421 is about 47461.9365491970. The cubic root of 2252635421 is about 1310.8821091071.

Adding to 2252635421 its reverse (1245362522), we get a palindrome (3497997943).

The spelling of 2252635421 in words is "two billion, two hundred fifty-two million, six hundred thirty-five thousand, four hundred twenty-one".