53126403 has 16 divisors (see below), whose sum is σ = 78921216. Its totient is φ = 31511840.

The previous prime is 53126401. The next prime is 53126449. The reversal of 53126403 is 30462135.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 53126403 - 2¹ = 53126401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53126401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15576 + ... + 18677.

It is an arithmetic number, because the mean of its divisors is an integer number (4932576).

Almost surely, 2^53126403 is an apocalyptic number.

53126403 is a deficient number, since it is larger than the sum of its proper divisors (25794813).

53126403 is a wasteful number, since it uses less digits than its factorization.

53126403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34314.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 53126403 is about 7288.7861129272. The cubic root of 53126403 is about 375.9269583296.

Adding to 53126403 its reverse (30462135), we get a palindrome (83588538).

The spelling of 53126403 in words is "fifty-three million, one hundred twenty-six thousand, four hundred three".