53421513405 has 64 divisors (see below), whose sum is σ = 97779322368. Its totient is φ = 24672706560.

The previous prime is 53421513401. The next prime is 53421513449. The reversal of 53421513405 is 50431512435.

It is not a de Polignac number, because 53421513405 - 2² = 53421513401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53421513401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1005057 + ... + 1056873.

It is an arithmetic number, because the mean of its divisors is an integer number (1527801912).

Almost surely, 2^53421513405 is an apocalyptic number.

It is an amenable number.

53421513405 is a deficient number, since it is larger than the sum of its proper divisors (44357808963).

53421513405 is a wasteful number, since it uses less digits than its factorization.

53421513405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52166.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 53421513405 in words is "fifty-three billion, four hundred twenty-one million, five hundred thirteen thousand, four hundred five".