53781204 has 12 divisors (see below), whose sum is σ = 125489504. Its totient is φ = 17927064.

The previous prime is 53781179. The next prime is 53781209. The reversal of 53781204 is 40218735.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53781209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2240872 + ... + 2240895.

Almost surely, 2^53781204 is an apocalyptic number.

It is an amenable number.

53781204 is an abundant number, since it is smaller than the sum of its proper divisors (71708300).

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

53781204 is a wasteful number, since it uses less digits than its factorization.

53781204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481774 (or 4481772 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 53781204 is about 7333.5669356733. The cubic root of 53781204 is about 377.4651319344.

Adding to 53781204 its reverse (40218735), we get a palindrome (93999939).

The spelling of 53781204 in words is "fifty-three million, seven hundred eighty-one thousand, two hundred four".