45561622 has 4 divisors (see below), whose sum is σ = 68342436. Its totient is φ = 22780810.

The previous prime is 45561617. The next prime is 45561671. The reversal of 45561622 is 22616554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22616554 = 2 ⋅11308277.

It is a super-2 number, since 2×45561622² = 4151722798541768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11390404 + ... + 11390407.

It is an arithmetic number, because the mean of its divisors is an integer number (17085609).

Almost surely, 2^45561622 is an apocalyptic number.

45561622 is a deficient number, since it is larger than the sum of its proper divisors (22780814).

45561622 is a wasteful number, since it uses less digits than its factorization.

45561622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22780813.

The product of its digits is 14400, while the sum is 31.

The square root of 45561622 is about 6749.9349626496. The cubic root of 45561622 is about 357.1629424590.

The spelling of 45561622 in words is "forty-five million, five hundred sixty-one thousand, six hundred twenty-two".