36520557 has 4 divisors (see below), whose sum is σ = 48694080. Its totient is φ = 24347036.

The previous prime is 36520553. The next prime is 36520571. The reversal of 36520557 is 75502563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36520557 - 2² = 36520553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36520553) 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, 6086757 + ... + 6086762.

It is an arithmetic number, because the mean of its divisors is an integer number (12173520).

Almost surely, 2^36520557 is an apocalyptic number.

It is an amenable number.

36520557 is a deficient number, since it is larger than the sum of its proper divisors (12173523).

36520557 is a wasteful number, since it uses less digits than its factorization.

36520557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12173522.

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 36520557 is about 6043.2240567432. The cubic root of 36520557 is about 331.7766346065.

The spelling of 36520557 in words is "thirty-six million, five hundred twenty thousand, five hundred fifty-seven".