53421461503 has 2 divisors, whose sum is σ = 53421461504. Its totient is φ = 53421461502.

The previous prime is 53421461437. The next prime is 53421461531. The reversal of 53421461503 is 30516412435.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53421461503 is a prime.

It is a super-2 number, since 2×53421461503² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53421461573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26710730751 + 26710730752.

It is an arithmetic number, because the mean of its divisors is an integer number (26710730752).

Almost surely, 2^53421461503 is an apocalyptic number.

53421461503 is a deficient number, since it is larger than the sum of its proper divisors (1).

53421461503 is an equidigital number, since it uses as much as digits as its factorization.

53421461503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 53421461503 its reverse (30516412435), we get a palindrome (83937873938).

The spelling of 53421461503 in words is "fifty-three billion, four hundred twenty-one million, four hundred sixty-one thousand, five hundred three".