561359477 has 8 divisors (see below), whose sum is σ = 641788992. Its totient is φ = 480988800.

The previous prime is 561359473. The next prime is 561359489. The reversal of 561359477 is 774953165.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561359477 - 2² = 561359473 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 (561359471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8102 + ... + 34472.

It is an arithmetic number, because the mean of its divisors is an integer number (80223624).

Almost surely, 2^561359477 is an apocalyptic number.

It is an amenable number.

561359477 is a deficient number, since it is larger than the sum of its proper divisors (80429515).

561359477 is a wasteful number, since it uses less digits than its factorization.

561359477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29419.

The product of its digits is 793800, while the sum is 47.

The square root of 561359477 is about 23693.0259148130. The cubic root of 561359477 is about 824.9235200606.

The spelling of 561359477 in words is "five hundred sixty-one million, three hundred fifty-nine thousand, four hundred seventy-seven".