53005655 has 4 divisors (see below), whose sum is σ = 63606792. Its totient is φ = 42404520.

The previous prime is 53005651. The next prime is 53005663. The reversal of 53005655 is 55650035.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53005655 - 2² = 53005651 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 (53005651) 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, 5300561 + ... + 5300570.

It is an arithmetic number, because the mean of its divisors is an integer number (15901698).

Almost surely, 2^53005655 is an apocalyptic number.

53005655 is a deficient number, since it is larger than the sum of its proper divisors (10601137).

53005655 is a wasteful number, since it uses less digits than its factorization.

53005655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10601136.

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 53005655 is about 7280.4982659156. The cubic root of 53005655 is about 375.6419345671.

The spelling of 53005655 in words is "fifty-three million, five thousand, six hundred fifty-five".