53435780 has 24 divisors (see below), whose sum is σ = 112640640. Its totient is φ = 21293280.

The previous prime is 53435773. The next prime is 53435791. The reversal of 53435780 is 8753435.

It is a self number, because there is not a number n which added to its sum of digits gives 53435780.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491 + ... + 10349.

It is an arithmetic number, because the mean of its divisors is an integer number (4693360).

Almost surely, 2^53435780 is an apocalyptic number.

It is an amenable number.

53435780 is an abundant number, since it is smaller than the sum of its proper divisors (59204860).

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

53435780 is a wasteful number, since it uses less digits than its factorization.

53435780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10139 (or 10137 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 53435780 is about 7309.9781121423. The cubic root of 53435780 is about 376.6552724079.

The spelling of 53435780 in words is "fifty-three million, four hundred thirty-five thousand, seven hundred eighty".