53689790 has 64 divisors (see below), whose sum is σ = 123033600. Its totient is φ = 16722720.

The previous prime is 53689781. The next prime is 53689807. The reversal of 53689790 is 9798635.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 37019 + ... + 38441.

It is an arithmetic number, because the mean of its divisors is an integer number (1922400).

Almost surely, 2^53689790 is an apocalyptic number.

53689790 is an abundant number, since it is smaller than the sum of its proper divisors (69343810).

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

53689790 is a wasteful number, since it uses less digits than its factorization.

53689790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462 (or 1448 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 53689790 is about 7327.3317107935. The cubic root of 53689790 is about 377.2511466034.

The spelling of 53689790 in words is "fifty-three million, six hundred eighty-nine thousand, seven hundred ninety".