61572849 has 16 divisors (see below), whose sum is σ = 88792704. Its totient is φ = 37728000.

The previous prime is 61572839. The next prime is 61572877. The reversal of 61572849 is 94827516.

It is not a de Polignac number, because 61572849 - 2⁹ = 61572337 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61572849.

It is not an unprimeable number, because it can be changed into a prime (61572839) 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, 6124 + ... + 12674.

It is an arithmetic number, because the mean of its divisors is an integer number (5549544).

Almost surely, 2^61572849 is an apocalyptic number.

It is an amenable number.

61572849 is a deficient number, since it is larger than the sum of its proper divisors (27219855).

61572849 is a wasteful number, since it uses less digits than its factorization.

61572849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6808.

The product of its digits is 120960, while the sum is 42.

The square root of 61572849 is about 7846.8368786410. The cubic root of 61572849 is about 394.8781315009.

The spelling of 61572849 in words is "sixty-one million, five hundred seventy-two thousand, eight hundred forty-nine".