5385020749 has 4 divisors (see below), whose sum is σ = 5398864380. Its totient is φ = 5371177120.

The previous prime is 5385020713. The next prime is 5385020761. The reversal of 5385020749 is 9470205835.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2660702724 + 2724318025 = 51582^2 + 52195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5385020749 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 (5385020789) 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, 6921232 + ... + 6922009.

It is an arithmetic number, because the mean of its divisors is an integer number (1349716095).

Almost surely, 2^5385020749 is an apocalyptic number.

It is an amenable number.

5385020749 is a deficient number, since it is larger than the sum of its proper divisors (13843631).

5385020749 is a wasteful number, since it uses less digits than its factorization.

5385020749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13843630.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 5385020749 is about 73382.7006112476. The cubic root of 5385020749 is about 1752.7869334003.

The spelling of 5385020749 in words is "five billion, three hundred eighty-five million, twenty thousand, seven hundred forty-nine".