53655943 has 16 divisors (see below), whose sum is σ = 62064000. Its totient is φ = 45874080.

The previous prime is 53655919. The next prime is 53655967. The reversal of 53655943 is 34955635.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53655919) and next prime (53655967).

It is a cyclic number.

It is not a de Polignac number, because 53655943 - 2¹³ = 53647751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53655896 and 53655905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53655643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30280 + ... + 32002.

It is an arithmetic number, because the mean of its divisors is an integer number (3879000).

Almost surely, 2^53655943 is an apocalyptic number.

53655943 is a deficient number, since it is larger than the sum of its proper divisors (8408057).

53655943 is a wasteful number, since it uses less digits than its factorization.

53655943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902.

The product of its digits is 243000, while the sum is 40.

The square root of 53655943 is about 7325.0217064525. The cubic root of 53655943 is about 377.1718546577.

The spelling of 53655943 in words is "fifty-three million, six hundred fifty-five thousand, nine hundred forty-three".