53555745 has 8 divisors (see below), whose sum is σ = 85689216. Its totient is φ = 28563056.

The previous prime is 53555681. The next prime is 53555767. The reversal of 53555745 is 54755535.

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 53555745 - 2⁶ = 53555681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1785177 + ... + 1785206.

It is an arithmetic number, because the mean of its divisors is an integer number (10711152).

Almost surely, 2^53555745 is an apocalyptic number.

It is an amenable number.

53555745 is a deficient number, since it is larger than the sum of its proper divisors (32133471).

53555745 is a wasteful number, since it uses less digits than its factorization.

53555745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3570391.

The product of its digits is 262500, while the sum is 39.

The square root of 53555745 is about 7318.1790767923. The cubic root of 53555745 is about 376.9369293652.

It can be divided in two parts, 535 and 55745, that added together give a triangular number (56280 = T₃₃₅).

The spelling of 53555745 in words is "fifty-three million, five hundred fifty-five thousand, seven hundred forty-five".