53404251 has 8 divisors (see below), whose sum is σ = 71300880. Its totient is φ = 35555232.

The previous prime is 53404207. The next prime is 53404261. The reversal of 53404251 is 15240435.

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

It is not a de Polignac number, because 53404251 - 2⁶ = 53404187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53404201) 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, 9196 + ... + 13833.

It is an arithmetic number, because the mean of its divisors is an integer number (8912610).

Almost surely, 2^53404251 is an apocalyptic number.

53404251 is a deficient number, since it is larger than the sum of its proper divisors (17896629).

53404251 is a wasteful number, since it uses less digits than its factorization.

53404251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23805.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 53404251 is about 7307.8212211301. The cubic root of 53404251 is about 376.5811778561.

Adding to 53404251 its reverse (15240435), we get a palindrome (68644686).

It can be divided in two parts, 5340 and 4251, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 53404251 in words is "fifty-three million, four hundred four thousand, two hundred fifty-one".