5661350137 has 4 divisors (see below), whose sum is σ = 5686072420. Its totient is φ = 5636627856.

The previous prime is 5661350129. The next prime is 5661350147. The reversal of 5661350137 is 7310531665.

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 2689355881 + 2971994256 = 51859^2 + 54516^2 .

It is a cyclic number.

It is not a de Polignac number, because 5661350137 - 2³ = 5661350129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5661350096 and 5661350105.

It is not an unprimeable number, because it can be changed into a prime (5661350147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12360798 + ... + 12361255.

It is an arithmetic number, because the mean of its divisors is an integer number (1421518105).

Almost surely, 2^5661350137 is an apocalyptic number.

It is an amenable number.

5661350137 is a deficient number, since it is larger than the sum of its proper divisors (24722283).

5661350137 is a wasteful number, since it uses less digits than its factorization.

5661350137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24722282.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 5661350137 is about 75241.9440006703. The cubic root of 5661350137 is about 1782.2693498912.

The spelling of 5661350137 in words is "five billion, six hundred sixty-one million, three hundred fifty thousand, one hundred thirty-seven".