36520457 has 4 divisors (see below), whose sum is σ = 37297536. Its totient is φ = 35743380.

The previous prime is 36520453. The next prime is 36520493. The reversal of 36520457 is 75402563.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75402563 = 653 ⋅115471.

It is a cyclic number.

It is not a de Polignac number, because 36520457 - 2² = 36520453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36520453) 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, 388469 + ... + 388562.

It is an arithmetic number, because the mean of its divisors is an integer number (9324384).

Almost surely, 2^36520457 is an apocalyptic number.

It is an amenable number.

36520457 is a deficient number, since it is larger than the sum of its proper divisors (777079).

36520457 is an equidigital number, since it uses as much as digits as its factorization.

36520457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777078.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 36520457 is about 6043.2157830082. The cubic root of 36520457 is about 331.7763317845.

The spelling of 36520457 in words is "thirty-six million, five hundred twenty thousand, four hundred fifty-seven".