56461145 has 16 divisors (see below), whose sum is σ = 73401552. Its totient is φ = 41445120.

The previous prime is 56461127. The next prime is 56461151. The reversal of 56461145 is 54116465.

It can be written as a sum of positive squares in 8 ways, for example, as 2468041 + 53993104 = 1571^2 + 7348^2 .

It is a de Polignac number, because none of the positive numbers 2^k-56461145 is a prime.

It is a super-2 number, since 2×56461145² = 6375721789422050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8735 + ... + 13755.

It is an arithmetic number, because the mean of its divisors is an integer number (4587597).

Almost surely, 2^56461145 is an apocalyptic number.

It is an amenable number.

56461145 is a deficient number, since it is larger than the sum of its proper divisors (16940407).

56461145 is a wasteful number, since it uses less digits than its factorization.

56461145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5212.

The product of its digits is 14400, while the sum is 32.

The square root of 56461145 is about 7514.0631485236. The cubic root of 56461145 is about 383.6335321206.

The spelling of 56461145 in words is "fifty-six million, four hundred sixty-one thousand, one hundred forty-five".