45422587 has 4 divisors (see below), whose sum is σ = 51911536. Its totient is φ = 38933640.

The previous prime is 45422579. The next prime is 45422591. The reversal of 45422587 is 78522454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78522454 = 2 ⋅39261227.

It is a cyclic number.

It is not a de Polignac number, because 45422587 - 2³ = 45422579 is a prime.

It is a super-2 number, since 2×45422587² = 4126422819545138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45422527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3244464 + ... + 3244477.

It is an arithmetic number, because the mean of its divisors is an integer number (12977884).

Almost surely, 2^45422587 is an apocalyptic number.

45422587 is a deficient number, since it is larger than the sum of its proper divisors (6488949).

45422587 is an equidigital number, since it uses as much as digits as its factorization.

45422587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6488948.

The product of its digits is 89600, while the sum is 37.

The square root of 45422587 is about 6739.6281054669. The cubic root of 45422587 is about 356.7992683454.

The spelling of 45422587 in words is "forty-five million, four hundred twenty-two thousand, five hundred eighty-seven".