561770948 has 24 divisors (see below), whose sum is σ = 1070529600. Its totient is φ = 256925088.

The previous prime is 561770939. The next prime is 561770959. The reversal of 561770948 is 849077165.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125240 + ... + 129647.

It is an arithmetic number, because the mean of its divisors is an integer number (44605400).

Almost surely, 2^561770948 is an apocalyptic number.

561770948 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

561770948 is a deficient number, since it is larger than the sum of its proper divisors (508758652).

561770948 is a wasteful number, since it uses less digits than its factorization.

561770948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254939 (or 254937 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 561770948 is about 23701.7077021889. The cubic root of 561770948 is about 825.1250244560.

The spelling of 561770948 in words is "five hundred sixty-one million, seven hundred seventy thousand, nine hundred forty-eight".