53502785 has 16 divisors (see below), whose sum is σ = 73569792. Its totient is φ = 36590400.

The previous prime is 53502769. The next prime is 53502821. The reversal of 53502785 is 58720535.

It is not a de Polignac number, because 53502785 - 2⁴ = 53502769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12920 + ... + 16550.

It is an arithmetic number, because the mean of its divisors is an integer number (4598112).

Almost surely, 2^53502785 is an apocalyptic number.

It is an amenable number.

53502785 is a deficient number, since it is larger than the sum of its proper divisors (20067007).

53502785 is a wasteful number, since it uses less digits than its factorization.

53502785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 53502785 is about 7314.5597953670. The cubic root of 53502785 is about 376.8126404050.

The spelling of 53502785 in words is "fifty-three million, five hundred two thousand, seven hundred eighty-five".