53457660 has 36 divisors (see below), whose sum is σ = 162155448. Its totient is φ = 14255328.

The previous prime is 53457647. The next prime is 53457661. The reversal of 53457660 is 6675435.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53457661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148314 + ... + 148673.

It is an arithmetic number, because the mean of its divisors is an integer number (4504318).

Almost surely, 2^53457660 is an apocalyptic number.

It is an amenable number.

53457660 is an abundant number, since it is smaller than the sum of its proper divisors (108697788).

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

53457660 is a wasteful number, since it uses less digits than its factorization.

53457660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297002 (or 296997 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 53457660 is about 7311.4745434830. The cubic root of 53457660 is about 376.7066742513.

The spelling of 53457660 in words is "fifty-three million, four hundred fifty-seven thousand, six hundred sixty".