561415948 has 18 divisors (see below), whose sum is σ = 1009758876. Its totient is φ = 273118608.

The previous prime is 561415931. The next prime is 561415961. The reversal of 561415948 is 849514165.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45786 + ... + 56737.

Almost surely, 2^561415948 is an apocalyptic number.

It is an amenable number.

561415948 is a deficient number, since it is larger than the sum of its proper divisors (448342928).

561415948 is a wasteful number, since it uses less digits than its factorization.

561415948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102601 (or 102562 counting only the distinct ones).

The product of its digits is 172800, while the sum is 43.

The square root of 561415948 is about 23694.2176068340. The cubic root of 561415948 is about 824.9511807047.

The spelling of 561415948 in words is "five hundred sixty-one million, four hundred fifteen thousand, nine hundred forty-eight".