53901785 has 32 divisors (see below), whose sum is σ = 76826880. Its totient is φ = 35534592.

The previous prime is 53901769. The next prime is 53901821. The reversal of 53901785 is 58710935.

It is a cyclic number.

It is not a de Polignac number, because 53901785 - 2⁴ = 53901769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138371 + ... + 138759.

It is an arithmetic number, because the mean of its divisors is an integer number (2400840).

Almost surely, 2^53901785 is an apocalyptic number.

It is an amenable number.

53901785 is a deficient number, since it is larger than the sum of its proper divisors (22925095).

53901785 is a wasteful number, since it uses less digits than its factorization.

53901785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 53901785 is about 7341.7835026647. The cubic root of 53901785 is about 377.7470219259.

The spelling of 53901785 in words is "fifty-three million, nine hundred one thousand, seven hundred eighty-five".