53103856 has 60 divisors (see below), whose sum is σ = 114367680. Its totient is φ = 23861760.

The previous prime is 53103833. The next prime is 53103859. The reversal of 53103856 is 65830135.

53103856 = T₃₈₃ + T₃₈₄ + ... + T₇₂₀.

53103856 = 129² + 130² + ... + 544².

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53103859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110625 + ... + 111103.

It is an arithmetic number, because the mean of its divisors is an integer number (1906128).

Almost surely, 2^53103856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53103856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57183840).

53103856 is an abundant number, since it is smaller than the sum of its proper divisors (61263824).

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

53103856 is a wasteful number, since it uses less digits than its factorization.

53103856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 53103856 is about 7287.2392577711. The cubic root of 53103856 is about 375.8737693061.

The spelling of 53103856 in words is "fifty-three million, one hundred three thousand, eight hundred fifty-six".