20253401 has 8 divisors (see below), whose sum is σ = 23175360. Its totient is φ = 17338608.

The previous prime is 20253391. The next prime is 20253407. The reversal of 20253401 is 10435202.

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

It is not a de Polignac number, because 20253401 - 2¹⁰ = 20252377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20253401.

It is not an unprimeable number, because it can be changed into a prime (20253407) 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, 7490 + ... + 9828.

It is an arithmetic number, because the mean of its divisors is an integer number (2896920).

Almost surely, 2^20253401 is an apocalyptic number.

It is an amenable number.

20253401 is a deficient number, since it is larger than the sum of its proper divisors (2921959).

20253401 is a wasteful number, since it uses less digits than its factorization.

20253401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20253401 is about 4500.3778730236. The cubic root of 20253401 is about 272.5833473969.

Adding to 20253401 its reverse (10435202), we get a palindrome (30688603).

The spelling of 20253401 in words is "twenty million, two hundred fifty-three thousand, four hundred one".