53787690 has 48 divisors (see below), whose sum is σ = 152564256. Its totient is φ = 13039200.

The previous prime is 53787673. The next prime is 53787737. The reversal of 53787690 is 9678735.

It is a happy number.

53787690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53787690² = 5786231191072200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26176 + ... + 28155.

It is an arithmetic number, because the mean of its divisors is an integer number (3178422).

Almost surely, 2^53787690 is an apocalyptic number.

53787690 is an abundant number, since it is smaller than the sum of its proper divisors (98776566).

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

53787690 is a wasteful number, since it uses less digits than its factorization.

53787690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54355 (or 54352 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 53787690 is about 7334.0091355274. The cubic root of 53787690 is about 377.4803053918.

The spelling of 53787690 in words is "fifty-three million, seven hundred eighty-seven thousand, six hundred ninety".