36521856 has 144 divisors (see below), whose sum is σ = 122442840. Its totient is φ = 10418688.

The previous prime is 36521809. The next prime is 36521869. The reversal of 36521856 is 65812563.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 36521856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 56125 + ... + 56771.

Almost surely, 2^36521856 is an apocalyptic number.

36521856 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36521856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61221420).

36521856 is an abundant number, since it is smaller than the sum of its proper divisors (85920984).

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

36521856 is a wasteful number, since it uses less digits than its factorization.

36521856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 659 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 36521856 is about 6043.3315315313. The cubic root of 36521856 is about 331.7805682152.

The spelling of 36521856 in words is "thirty-six million, five hundred twenty-one thousand, eight hundred fifty-six".