45521057 has 2 divisors, whose sum is σ = 45521058. Its totient is φ = 45521056.

The previous prime is 45521041. The next prime is 45521081. The reversal of 45521057 is 75012554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24690961 + 20830096 = 4969^2 + 4564^2 .

It is a cyclic number.

It is not a de Polignac number, because 45521057 - 2⁴ = 45521041 is a prime.

It is a super-3 number, since 3×45521057³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45521557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22760528 + 22760529.

It is an arithmetic number, because the mean of its divisors is an integer number (22760529).

Almost surely, 2^45521057 is an apocalyptic number.

It is an amenable number.

45521057 is a deficient number, since it is larger than the sum of its proper divisors (1).

45521057 is an equidigital number, since it uses as much as digits as its factorization.

45521057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 45521057 is about 6746.9294497571. The cubic root of 45521057 is about 357.0569130417.

It can be divided in two parts, 455 and 21057, that added together give a palindrome (21512).

The spelling of 45521057 in words is "forty-five million, five hundred twenty-one thousand, fifty-seven".