53405671 has 8 divisors (see below), whose sum is σ = 58316544. Its totient is φ = 48504120.

The previous prime is 53405663. The next prime is 53405711. The reversal of 53405671 is 17650435.

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 53405671 - 2³ = 53405663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53405621) 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, 15880 + ... + 18946.

It is an arithmetic number, because the mean of its divisors is an integer number (7289568).

Almost surely, 2^53405671 is an apocalyptic number.

53405671 is a deficient number, since it is larger than the sum of its proper divisors (4910873).

53405671 is a wasteful number, since it uses less digits than its factorization.

53405671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 53405671 is about 7307.9183766651. The cubic root of 53405671 is about 376.5845155462.

It can be divided in two parts, 5340 and 5671, that added together give a palindrome (11011).

The spelling of 53405671 in words is "fifty-three million, four hundred five thousand, six hundred seventy-one".