53775807 has 8 divisors (see below), whose sum is σ = 71751984. Its totient is φ = 35825088.

The previous prime is 53775803. The next prime is 53775809. The reversal of 53775807 is 70857735.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53775807 - 2² = 53775803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53775803) 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, 718 + ... + 10395.

It is an arithmetic number, because the mean of its divisors is an integer number (8968998).

Almost surely, 2^53775807 is an apocalyptic number.

53775807 is a deficient number, since it is larger than the sum of its proper divisors (17976177).

53775807 is a wasteful number, since it uses less digits than its factorization.

53775807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12729.

The product of its (nonzero) digits is 205800, while the sum is 42.

The square root of 53775807 is about 7333.1989608901. The cubic root of 53775807 is about 377.4525051719.

The spelling of 53775807 in words is "fifty-three million, seven hundred seventy-five thousand, eight hundred seven".