53402401 has 4 divisors (see below), whose sum is σ = 57510292. Its totient is φ = 49294512.

The previous prime is 53402381. The next prime is 53402411. The reversal of 53402401 is 10420435.

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 12952801 + 40449600 = 3599^2 + 6360^2 .

It is a cyclic number.

It is not a de Polignac number, because 53402401 - 2¹⁹ = 52878113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53402411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2053926 + ... + 2053951.

It is an arithmetic number, because the mean of its divisors is an integer number (14377573).

Almost surely, 2^53402401 is an apocalyptic number.

It is an amenable number.

53402401 is a deficient number, since it is larger than the sum of its proper divisors (4107891).

53402401 is a wasteful number, since it uses less digits than its factorization.

53402401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107890.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 53402401 is about 7307.6946433195. The cubic root of 53402401 is about 376.5768293681.

Adding to 53402401 its reverse (10420435), we get a palindrome (63822836).

The spelling of 53402401 in words is "fifty-three million, four hundred two thousand, four hundred one".