53043494 has 16 divisors (see below), whose sum is σ = 94068000. Its totient is φ = 21948864.

The previous prime is 53043493. The next prime is 53043509. The reversal of 53043494 is 49434035.

It is a super-2 number, since 2×53043494² = 5627224511456072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53043494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53043493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64919 + ... + 65730.

It is an arithmetic number, because the mean of its divisors is an integer number (5879250).

Almost surely, 2^53043494 is an apocalyptic number.

53043494 is a deficient number, since it is larger than the sum of its proper divisors (41024506).

53043494 is a wasteful number, since it uses less digits than its factorization.

53043494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130687.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 53043494 is about 7283.0964568650. The cubic root of 53043494 is about 375.7312994611.

The spelling of 53043494 in words is "fifty-three million, forty-three thousand, four hundred ninety-four".