61266443 has 16 divisors (see below), whose sum is σ = 72483840. Its totient is φ = 50694336.

The previous prime is 61266433. The next prime is 61266479. The reversal of 61266443 is 34466216.

It is not a de Polignac number, because 61266443 - 2¹² = 61262347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61266433) 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, 25646 + ... + 27932.

It is an arithmetic number, because the mean of its divisors is an integer number (4530240).

Almost surely, 2^61266443 is an apocalyptic number.

61266443 is a deficient number, since it is larger than the sum of its proper divisors (11217397).

61266443 is a wasteful number, since it uses less digits than its factorization.

61266443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426.

The product of its digits is 20736, while the sum is 32.

The square root of 61266443 is about 7827.2883554907. The cubic root of 61266443 is about 394.2220290828. Note that the first 3 decimals are identical.

The spelling of 61266443 in words is "sixty-one million, two hundred sixty-six thousand, four hundred forty-three".