53744661 has 8 divisors (see below), whose sum is σ = 79621760. Its totient is φ = 35829756.

The previous prime is 53744659. The next prime is 53744681. The reversal of 53744661 is 16644735.

It is a happy number.

It is not a de Polignac number, because 53744661 - 2¹ = 53744659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53744681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 995245 + ... + 995298.

It is an arithmetic number, because the mean of its divisors is an integer number (9952720).

Almost surely, 2^53744661 is an apocalyptic number.

It is an amenable number.

53744661 is a deficient number, since it is larger than the sum of its proper divisors (25877099).

53744661 is a wasteful number, since it uses less digits than its factorization.

53744661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990552 (or 1990546 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 53744661 is about 7331.0750234873. The cubic root of 53744661 is about 377.3796198184.

The spelling of 53744661 in words is "fifty-three million, seven hundred forty-four thousand, six hundred sixty-one".