561507150 has 24 divisors (see below), whose sum is σ = 1392538104. Its totient is φ = 149735200.

The previous prime is 561507137. The next prime is 561507151. The reversal of 561507150 is 51705165.

It is a super-2 number, since 2×561507150² = 630580559002245000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561507151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1871541 + ... + 1871840.

It is an arithmetic number, because the mean of its divisors is an integer number (58022421).

Almost surely, 2^561507150 is an apocalyptic number.

561507150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

561507150 is an abundant number, since it is smaller than the sum of its proper divisors (831030954).

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

561507150 is a wasteful number, since it uses less digits than its factorization.

561507150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743396 (or 3743391 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 561507150 is about 23696.1420910662. The cubic root of 561507150 is about 824.9958493822.

The spelling of 561507150 in words is "five hundred sixty-one million, five hundred seven thousand, one hundred fifty".