561150501 has 16 divisors (see below), whose sum is σ = 796651200. Its totient is φ = 350121728.

The previous prime is 561150463. The next prime is 561150517. The reversal of 561150501 is 105051165.

It is a cyclic number.

It is not a de Polignac number, because 561150501 - 2²⁷ = 426932773 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561150521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21606 + ... + 39863.

It is an arithmetic number, because the mean of its divisors is an integer number (49790700).

Almost surely, 2^561150501 is an apocalyptic number.

561150501 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

561150501 is a deficient number, since it is larger than the sum of its proper divisors (235500699).

561150501 is a wasteful number, since it uses less digits than its factorization.

561150501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61668.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 561150501 is about 23688.6154302019. The cubic root of 561150501 is about 824.8211432292.

The spelling of 561150501 in words is "five hundred sixty-one million, one hundred fifty thousand, five hundred one".