55735808749 has 4 divisors (see below), whose sum is σ = 56787427836. Its totient is φ = 54684189664.

The previous prime is 55735808743. The next prime is 55735808767. The reversal of 55735808749 is 94780853755.

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 43855898724 + 11879910025 = 209418^2 + 108995^2 .

It is a cyclic number.

It is not a de Polignac number, because 55735808749 - 2³ = 55735808741 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 (55735808741) 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, 525809464 + ... + 525809569.

It is an arithmetic number, because the mean of its divisors is an integer number (14196856959).

Almost surely, 2^55735808749 is an apocalyptic number.

It is an amenable number.

55735808749 is a deficient number, since it is larger than the sum of its proper divisors (1051619087).

55735808749 is a wasteful number, since it uses less digits than its factorization.

55735808749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051619086.

The product of its (nonzero) digits is 42336000, while the sum is 61.

The spelling of 55735808749 in words is "fifty-five billion, seven hundred thirty-five million, eight hundred eight thousand, seven hundred forty-nine".