53445430 has 32 divisors (see below), whose sum is σ = 97977600. Its totient is φ = 20988000.

The previous prime is 53445401. The next prime is 53445437. The reversal of 53445430 is 3454435.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53445437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212805 + ... + 213055.

It is an arithmetic number, because the mean of its divisors is an integer number (3061800).

Almost surely, 2^53445430 is an apocalyptic number.

53445430 is a deficient number, since it is larger than the sum of its proper divisors (44532170).

53445430 is a wasteful number, since it uses less digits than its factorization.

53445430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 53445430 is about 7310.6381390409. The cubic root of 53445430 is about 376.6779445114.

Adding to 53445430 its reverse (3454435), we get a palindrome (56899865).

The spelling of 53445430 in words is "fifty-three million, four hundred forty-five thousand, four hundred thirty".