53774785 has 4 divisors (see below), whose sum is σ = 64529748. Its totient is φ = 43019824.

The previous prime is 53774771. The next prime is 53774789. The reversal of 53774785 is 58747735.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58747735 = 5 ⋅11749547.

It can be written as a sum of positive squares in 2 ways, for example, as 14348944 + 39425841 = 3788^2 + 6279^2 .

It is a cyclic number.

It is not a de Polignac number, because 53774785 - 2²³ = 45386177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53774789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5377474 + ... + 5377483.

It is an arithmetic number, because the mean of its divisors is an integer number (16132437).

Almost surely, 2^53774785 is an apocalyptic number.

It is an amenable number.

53774785 is a deficient number, since it is larger than the sum of its proper divisors (10754963).

53774785 is a wasteful number, since it uses less digits than its factorization.

53774785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10754962.

The product of its digits is 823200, while the sum is 46.

The square root of 53774785 is about 7333.1292774640. The cubic root of 53774785 is about 377.4501140167.

The spelling of 53774785 in words is "fifty-three million, seven hundred seventy-four thousand, seven hundred eighty-five".