53405494 has 8 divisors (see below), whose sum is σ = 83591280. Its totient is φ = 25541736.

The previous prime is 53405491. The next prime is 53405497. The reversal of 53405494 is 49450435.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53405491) and next prime (53405497).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53405491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580449 + ... + 580540.

It is an arithmetic number, because the mean of its divisors is an integer number (10448910).

Almost surely, 2^53405494 is an apocalyptic number.

53405494 is a deficient number, since it is larger than the sum of its proper divisors (30185786).

53405494 is a wasteful number, since it uses less digits than its factorization.

53405494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161014.

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

The square root of 53405494 is about 7307.9062665034. The cubic root of 53405494 is about 376.5840995134.

The spelling of 53405494 in words is "fifty-three million, four hundred five thousand, four hundred ninety-four".