53944402 has 16 divisors (see below), whose sum is σ = 83711232. Its totient is φ = 26044560.

The previous prime is 53944399. The next prime is 53944441. The reversal of 53944402 is 20444935.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 44853 + ... + 46039.

It is an arithmetic number, because the mean of its divisors is an integer number (5231952).

Almost surely, 2^53944402 is an apocalyptic number.

53944402 is a deficient number, since it is larger than the sum of its proper divisors (29766830).

53944402 is a wasteful number, since it uses less digits than its factorization.

53944402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 53944402 is about 7344.6852893776. The cubic root of 53944402 is about 377.8465498852.

The spelling of 53944402 in words is "fifty-three million, nine hundred forty-four thousand, four hundred two".