561612300 has 72 divisors (see below), whose sum is σ = 1627354176. Its totient is φ = 149540160.

The previous prime is 561612277. The next prime is 561612313. The reversal of 561612300 is 3216165.

It is a super-2 number, since 2×561612300² = 630816751022580000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336067 + ... + 337733.

Almost surely, 2^561612300 is an apocalyptic number.

561612300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

561612300 is an abundant number, since it is smaller than the sum of its proper divisors (1065741876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561612300 is a wasteful number, since it uses less digits than its factorization.

561612300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807 (or 2800 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 561612300 is about 23698.3607027997. The cubic root of 561612300 is about 825.0473434723.

Adding to 561612300 its reverse (3216165), we get a palindrome (564828465).

The spelling of 561612300 in words is "five hundred sixty-one million, six hundred twelve thousand, three hundred".