53563776 has 64 divisors (see below), whose sum is σ = 162612480. Its totient is φ = 15303168.

The previous prime is 53563771. The next prime is 53563837. The reversal of 53563776 is 67736535.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53563771) 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, 7276 + ... + 12651.

It is an arithmetic number, because the mean of its divisors is an integer number (2540820).

Almost surely, 2^53563776 is an apocalyptic number.

53563776 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

53563776 is an abundant number, since it is smaller than the sum of its proper divisors (109048704).

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

53563776 is a wasteful number, since it uses less digits than its factorization.

53563776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19951 (or 19939 counting only the distinct ones).

The product of its digits is 396900, while the sum is 42.

The square root of 53563776 is about 7318.7277582924. The cubic root of 53563776 is about 376.9557697291.

The spelling of 53563776 in words is "fifty-three million, five hundred sixty-three thousand, seven hundred seventy-six".