53629780 has 24 divisors (see below), whose sum is σ = 118550880. Its totient is φ = 20322720.

The previous prime is 53629777. The next prime is 53629789. The reversal of 53629780 is 8792635.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53629789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70186 + ... + 70945.

It is an arithmetic number, because the mean of its divisors is an integer number (4939620).

Almost surely, 2^53629780 is an apocalyptic number.

It is an amenable number.

53629780 is an abundant number, since it is smaller than the sum of its proper divisors (64921100).

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

53629780 is a wasteful number, since it uses less digits than its factorization.

53629780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141159 (or 141157 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 53629780 is about 7323.2356236844. The cubic root of 53629780 is about 377.1105408435.

The spelling of 53629780 in words is "fifty-three million, six hundred twenty-nine thousand, seven hundred eighty".