53713645 has 8 divisors (see below), whose sum is σ = 65672856. Its totient is φ = 42159936.

The previous prime is 53713643. The next prime is 53713657. The reversal of 53713645 is 54631735.

It can be written as a sum of positive squares in 4 ways, for example, as 1671849 + 52041796 = 1293^2 + 7214^2 .

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 53713645 - 2¹ = 53713643 is a prime.

It is a super-3 number, since 3×53713645³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53713645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53713643) 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, 101082 + ... + 101611.

It is an arithmetic number, because the mean of its divisors is an integer number (8209107).

Almost surely, 2^53713645 is an apocalyptic number.

It is an amenable number.

53713645 is a deficient number, since it is larger than the sum of its proper divisors (11959211).

53713645 is a wasteful number, since it uses less digits than its factorization.

53713645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202751.

The product of its digits is 37800, while the sum is 34.

The square root of 53713645 is about 7328.9593394970. The cubic root of 53713645 is about 377.3070106922.

The spelling of 53713645 in words is "fifty-three million, seven hundred thirteen thousand, six hundred forty-five".