52501785 has 48 divisors (see below), whose sum is σ = 99404352. Its totient is φ = 23587200.

The previous prime is 52501781. The next prime is 52501793. The reversal of 52501785 is 58710525.

It is a happy number.

It is not a de Polignac number, because 52501785 - 2² = 52501781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52501781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44250 + ... + 45420.

It is an arithmetic number, because the mean of its divisors is an integer number (2070924).

Almost surely, 2^52501785 is an apocalyptic number.

It is an amenable number.

52501785 is a deficient number, since it is larger than the sum of its proper divisors (46902567).

52501785 is a wasteful number, since it uses less digits than its factorization.

52501785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 52501785 is about 7245.8115487501. The cubic root of 52501785 is about 374.4478630072.

The spelling of 52501785 in words is "fifty-two million, five hundred one thousand, seven hundred eighty-five".