45352621 has 2 divisors, whose sum is σ = 45352622. Its totient is φ = 45352620.

The previous prime is 45352609. The next prime is 45352649. The reversal of 45352621 is 12625354.

It is an a-pointer prime, because the next prime (45352649) can be obtained adding 45352621 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43626025 + 1726596 = 6605^2 + 1314^2 .

It is a cyclic number.

It is not a de Polignac number, because 45352621 - 2⁷ = 45352493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45352621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45352661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22676310 + 22676311.

It is an arithmetic number, because the mean of its divisors is an integer number (22676311).

Almost surely, 2^45352621 is an apocalyptic number.

It is an amenable number.

45352621 is a deficient number, since it is larger than the sum of its proper divisors (1).

45352621 is an equidigital number, since it uses as much as digits as its factorization.

45352621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 45352621 is about 6734.4354626056. The cubic root of 45352621 is about 356.6159774045.

Adding to 45352621 its reverse (12625354), we get a palindrome (57977975).

The spelling of 45352621 in words is "forty-five million, three hundred fifty-two thousand, six hundred twenty-one".