57653505 has 144 divisors (see below), whose sum is σ = 133868160. Its totient is φ = 23048064.

The previous prime is 57653501. The next prime is 57653513. The reversal of 57653505 is 50535675.

It is not a de Polignac number, because 57653505 - 2² = 57653501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57653505.

It is not an unprimeable number, because it can be changed into a prime (57653501) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3034386 + ... + 3034404.

It is an arithmetic number, because the mean of its divisors is an integer number (929640).

Almost surely, 2^57653505 is an apocalyptic number.

It is an amenable number.

57653505 is an abundant number, since it is smaller than the sum of its proper divisors (76214655).

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

57653505 is a wasteful number, since it uses less digits than its factorization.

57653505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 57653505 is about 7592.9905175761. The cubic root of 57653505 is about 386.3152967183.

The spelling of 57653505 in words is "fifty-seven million, six hundred fifty-three thousand, five hundred five".