53291405 has 16 divisors (see below), whose sum is σ = 65729664. Its totient is φ = 41455680.

The previous prime is 53291389. The next prime is 53291411. The reversal of 53291405 is 50419235.

53291405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53291405 - 2⁴ = 53291389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66467 + ... + 67263.

It is an arithmetic number, because the mean of its divisors is an integer number (4108104).

Almost surely, 2^53291405 is an apocalyptic number.

It is an amenable number.

53291405 is a deficient number, since it is larger than the sum of its proper divisors (12438259).

53291405 is a wasteful number, since it uses less digits than its factorization.

53291405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 53291405 is about 7300.0962322424. The cubic root of 53291405 is about 376.3157455115.

The spelling of 53291405 in words is "fifty-three million, two hundred ninety-one thousand, four hundred five".