53944390 has 8 divisors (see below), whose sum is σ = 97099920. Its totient is φ = 21577752.

The previous prime is 53944367. The next prime is 53944399. The reversal of 53944390 is 9344935.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53944399) 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, 2697210 + ... + 2697229.

It is an arithmetic number, because the mean of its divisors is an integer number (12137490).

Almost surely, 2^53944390 is an apocalyptic number.

53944390 is a deficient number, since it is larger than the sum of its proper divisors (43155530).

53944390 is a wasteful number, since it uses less digits than its factorization.

53944390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5394446.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 53944390 is about 7344.6844724603. The cubic root of 53944390 is about 377.8465218677.

The spelling of 53944390 in words is "fifty-three million, nine hundred forty-four thousand, three hundred ninety".