5661732551 has 4 divisors (see below), whose sum is σ = 5664666504. Its totient is φ = 5658798600.

The previous prime is 5661732539. The next prime is 5661732619. The reversal of 5661732551 is 1552371665.

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

It is a cyclic number.

It is not a de Polignac number, because 5661732551 - 2²² = 5657538247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5661732499 and 5661732508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661732511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464080 + ... + 1467941.

It is an arithmetic number, because the mean of its divisors is an integer number (1416166626).

Almost surely, 2^5661732551 is an apocalyptic number.

5661732551 is a deficient number, since it is larger than the sum of its proper divisors (2933953).

5661732551 is a wasteful number, since it uses less digits than its factorization.

5661732551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933952.

The product of its digits is 189000, while the sum is 41.

The square root of 5661732551 is about 75244.4851866235. The cubic root of 5661732551 is about 1782.3094786820.

The spelling of 5661732551 in words is "five billion, six hundred sixty-one million, seven hundred thirty-two thousand, five hundred fifty-one".