53444770 has 24 divisors (see below), whose sum is σ = 102197844. Its totient is φ = 20119296.

The previous prime is 53444749. The next prime is 53444773. The reversal of 53444770 is 7744435.

It can be written as a sum of positive squares in 6 ways, for example, as 35964009 + 17480761 = 5997^2 + 4181^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (53444773) 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 11 ways as a sum of consecutive naturals, for example, 6357 + ... + 12136.

Almost surely, 2^53444770 is an apocalyptic number.

53444770 is a deficient number, since it is larger than the sum of its proper divisors (48753074).

53444770 is a wasteful number, since it uses less digits than its factorization.

53444770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18534 (or 18517 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 53444770 is about 7310.5929992033. The cubic root of 53444770 is about 376.6763939674.

The spelling of 53444770 in words is "fifty-three million, four hundred forty-four thousand, seven hundred seventy".