53405541 has 48 divisors (see below), whose sum is σ = 94610880. Its totient is φ = 29665440.

The previous prime is 53405537. The next prime is 53405549. The reversal of 53405541 is 14550435.

It is not a de Polignac number, because 53405541 - 2² = 53405537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53405549) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48406 + ... + 49496.

It is an arithmetic number, because the mean of its divisors is an integer number (1971060).

Almost surely, 2^53405541 is an apocalyptic number.

It is an amenable number.

53405541 is a deficient number, since it is larger than the sum of its proper divisors (41205339).

53405541 is a wasteful number, since it uses less digits than its factorization.

53405541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 53405541 is about 7307.9094821980. The cubic root of 53405541 is about 376.5842099855.

Adding to 53405541 its reverse (14550435), we get a palindrome (67955976).

The spelling of 53405541 in words is "fifty-three million, four hundred five thousand, five hundred forty-one".