45487537 has 4 divisors (see below), whose sum is σ = 47465280. Its totient is φ = 43509796.

The previous prime is 45487487. The next prime is 45487549. The reversal of 45487537 is 73578454.

45487537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 73578454 = 2 ⋅36789227.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45487537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45487493 and 45487502.

It is not an unprimeable number, because it can be changed into a prime (45482537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 988837 + ... + 988882.

It is an arithmetic number, because the mean of its divisors is an integer number (11866320).

Almost surely, 2^45487537 is an apocalyptic number.

It is an amenable number.

45487537 is a deficient number, since it is larger than the sum of its proper divisors (1977743).

45487537 is a wasteful number, since it uses less digits than its factorization.

45487537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977742.

The product of its digits is 470400, while the sum is 43.

The square root of 45487537 is about 6744.4448993227. Note that the first 3 decimals coincide. The cubic root of 45487537 is about 356.9692504122.

The spelling of 45487537 in words is "forty-five million, four hundred eighty-seven thousand, five hundred thirty-seven".