53406544 has 10 divisors (see below), whose sum is σ = 103475210. Its totient is φ = 26703264.

The previous prime is 53406541. The next prime is 53406547. The reversal of 53406544 is 44560435.

It is an interprime number because it is at equal distance from previous prime (53406541) and next prime (53406547).

It can be written as a sum of positive squares in only one way, i.e., 53114944 + 291600 = 7288^2 + 540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53406541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1668939 + ... + 1668970.

It is an arithmetic number, because the mean of its divisors is an integer number (10347521).

Almost surely, 2^53406544 is an apocalyptic number.

It is an amenable number.

53406544 is a deficient number, since it is larger than the sum of its proper divisors (50068666).

53406544 is a wasteful number, since it uses less digits than its factorization.

53406544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337917 (or 3337911 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 53406544 is about 7307.9781061522. The cubic root of 53406544 is about 376.5865674912.

Adding to 53406544 its reverse (44560435), we get a palindrome (97966979).

The spelling of 53406544 in words is "fifty-three million, four hundred six thousand, five hundred forty-four".