5561391725357 has 4 divisors (see below), whose sum is σ = 5989191088860. Its totient is φ = 5133592361856.

The previous prime is 5561391725273. The next prime is 5561391725371. The reversal of 5561391725357 is 7535271931655.

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 2409989227396 + 3151402497961 = 1552414^2 + 1775219^2 .

It is a cyclic number.

It is not a de Polignac number, because 5561391725357 - 2¹⁶ = 5561391659821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5561391725296 and 5561391725305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561391727357) 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, 213899681732 + ... + 213899681757.

It is an arithmetic number, because the mean of its divisors is an integer number (1497297772215).

Almost surely, 2^{5561391725357} is an apocalyptic number.

It is an amenable number.

5561391725357 is a deficient number, since it is larger than the sum of its proper divisors (427799363503).

5561391725357 is a wasteful number, since it uses less digits than its factorization.

5561391725357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427799363502.

The product of its digits is 29767500, while the sum is 59.

The spelling of 5561391725357 in words is "five trillion, five hundred sixty-one billion, three hundred ninety-one million, seven hundred twenty-five thousand, three hundred fifty-seven".