53371403 has 4 divisors (see below), whose sum is σ = 53725008. Its totient is φ = 53017800.

The previous prime is 53371387. The next prime is 53371411. The reversal of 53371403 is 30417335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53371403 - 2⁴ = 53371387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53371603) 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, 176576 + ... + 176877.

It is an arithmetic number, because the mean of its divisors is an integer number (13431252).

Almost surely, 2^53371403 is an apocalyptic number.

53371403 is a deficient number, since it is larger than the sum of its proper divisors (353605).

53371403 is a wasteful number, since it uses less digits than its factorization.

53371403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353604.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 53371403 is about 7305.5734203415. The cubic root of 53371403 is about 376.5039525707.

Adding to 53371403 its reverse (30417335), we get a palindrome (83788738).

The spelling of 53371403 in words is "fifty-three million, three hundred seventy-one thousand, four hundred three".