53431405 has 16 divisors (see below), whose sum is σ = 66624768. Its totient is φ = 41104000.

The previous prime is 53431393. The next prime is 53431421. The reversal of 53431405 is 50413435.

It is not a de Polignac number, because 53431405 - 2⁵ = 53431373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53431405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12720 + ... + 16390.

It is an arithmetic number, because the mean of its divisors is an integer number (4164048).

Almost surely, 2^53431405 is an apocalyptic number.

It is an amenable number.

53431405 is a deficient number, since it is larger than the sum of its proper divisors (13193363).

53431405 is a wasteful number, since it uses less digits than its factorization.

53431405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 53431405 is about 7309.6788575149. The cubic root of 53431405 is about 376.6449927052.

The spelling of 53431405 in words is "fifty-three million, four hundred thirty-one thousand, four hundred five".