45395521 has 2 divisors, whose sum is σ = 45395522. Its totient is φ = 45395520.

The previous prime is 45395513. The next prime is 45395531. The reversal of 45395521 is 12559354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44890000 + 505521 = 6700^2 + 711^2 .

It is a cyclic number.

It is not a de Polignac number, because 45395521 - 2³ = 45395513 is a prime.

It is a super-2 number, since 2×45395521² = 4121506653722882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45395531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22697760 + 22697761.

It is an arithmetic number, because the mean of its divisors is an integer number (22697761).

Almost surely, 2^45395521 is an apocalyptic number.

It is an amenable number.

45395521 is a deficient number, since it is larger than the sum of its proper divisors (1).

45395521 is an equidigital number, since it uses as much as digits as its factorization.

45395521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27000, while the sum is 34.

The square root of 45395521 is about 6737.6198319585. The cubic root of 45395521 is about 356.7283854917.

The spelling of 45395521 in words is "forty-five million, three hundred ninety-five thousand, five hundred twenty-one".