53561944 has 16 divisors (see below), whose sum is σ = 101928600. Its totient is φ = 26380992.

The previous prime is 53561941. The next prime is 53561947. The reversal of 53561944 is 44916535.

It is an interprime number because it is at equal distance from previous prime (53561941) and next prime (53561947).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53561941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49429 + ... + 50500.

Almost surely, 2^53561944 is an apocalyptic number.

It is an amenable number.

53561944 is a deficient number, since it is larger than the sum of its proper divisors (48366656).

53561944 is a wasteful number, since it uses less digits than its factorization.

53561944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100002 (or 99998 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 53561944 is about 7318.6025988572. The cubic root of 53561944 is about 376.9514721055.

The spelling of 53561944 in words is "fifty-three million, five hundred sixty-one thousand, nine hundred forty-four".