36521004 has 48 divisors (see below), whose sum is σ = 92322272. Its totient is φ = 11169792.

The previous prime is 36520997. The next prime is 36521029. The reversal of 36521004 is 40012563.

It is a happy number.

It is a super-3 number, since 3×36521004³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29502 + ... + 30714.

Almost surely, 2^36521004 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 36521004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46161136).

36521004 is an abundant number, since it is smaller than the sum of its proper divisors (55801268).

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

36521004 is a wasteful number, since it uses less digits than its factorization.

36521004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1424 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 36521004 is about 6043.2610402001. The cubic root of 36521004 is about 331.7779882145. Note that the first 3 decimals are identical.

Adding to 36521004 its reverse (40012563), we get a palindrome (76533567).

It can be divided in two parts, 3652 and 1004, that added together give a triangular number (4656 = T₉₆).

The spelling of 36521004 in words is "thirty-six million, five hundred twenty-one thousand, four".