53806545 has 128 divisors (see below), whose sum is σ = 113541120. Its totient is φ = 23950080.

The previous prime is 53806541. The next prime is 53806559. The reversal of 53806545 is 54560835.

It is not a de Polignac number, because 53806545 - 2² = 53806541 is a prime.

It is a super-3 number, since 3×53806545³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53806541) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1251294 + ... + 1251336.

It is an arithmetic number, because the mean of its divisors is an integer number (887040).

Almost surely, 2^53806545 is an apocalyptic number.

It is an amenable number.

53806545 is an abundant number, since it is smaller than the sum of its proper divisors (59734575).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53806545 is a wasteful number, since it uses less digits than its factorization.

53806545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 53806545 is about 7335.2944726166. The cubic root of 53806545 is about 377.5244081699.

The spelling of 53806545 in words is "fifty-three million, eight hundred six thousand, five hundred forty-five".