53061644 has 12 divisors (see below), whose sum is σ = 96895344. Its totient is φ = 25377264.

The previous prime is 53061601. The next prime is 53061649. The reversal of 53061644 is 44616035.

It is a happy number.

It is a super-3 number, since 3×53061644³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (53061649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288287 + ... + 288470.

It is an arithmetic number, because the mean of its divisors is an integer number (8074612).

Almost surely, 2^53061644 is an apocalyptic number.

It is an amenable number.

53061644 is a deficient number, since it is larger than the sum of its proper divisors (43833700).

53061644 is a wasteful number, since it uses less digits than its factorization.

53061644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576784 (or 576782 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 53061644 is about 7284.3423862419. The cubic root of 53061644 is about 375.7741494879.

Adding to 53061644 its reverse (44616035), we get a palindrome (97677679).

The spelling of 53061644 in words is "fifty-three million, sixty-one thousand, six hundred forty-four".