53404663 has 8 divisors (see below), whose sum is σ = 58051728. Its totient is φ = 48834624.

The previous prime is 53404657. The next prime is 53404669. The reversal of 53404663 is 36640435.

It is an interprime number because it is at equal distance from previous prime (53404657) and next prime (53404669).

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

It is a cyclic number.

It is not a de Polignac number, because 53404663 - 2¹³ = 53396471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53404669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17806 + ... + 20587.

It is an arithmetic number, because the mean of its divisors is an integer number (7256466).

Almost surely, 2^53404663 is an apocalyptic number.

53404663 is a deficient number, since it is larger than the sum of its proper divisors (4647065).

53404663 is a wasteful number, since it uses less digits than its factorization.

53404663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38513.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 53404663 is about 7307.8494100522. The cubic root of 53404663 is about 376.5821462624.

The spelling of 53404663 in words is "fifty-three million, four hundred four thousand, six hundred sixty-three".