53145544 has 16 divisors (see below), whose sum is σ = 100039500. Its totient is φ = 26468352.

The previous prime is 53145517. The next prime is 53145577. The reversal of 53145544 is 44554135.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 53144100 + 1444 = 7290^2 + 38^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10869 + ... + 14980.

Almost surely, 2^53145544 is an apocalyptic number.

It is an amenable number.

53145544 is a deficient number, since it is larger than the sum of its proper divisors (46893956).

53145544 is a wasteful number, since it uses less digits than its factorization.

53145544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26112 (or 26108 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 53145544 is about 7290.0990391078. The cubic root of 53145544 is about 375.9721006913.

Adding to 53145544 its reverse (44554135), we get a palindrome (97699679).

The spelling of 53145544 in words is "fifty-three million, one hundred forty-five thousand, five hundred forty-four".