45753581 has 4 divisors (see below), whose sum is σ = 46869564. Its totient is φ = 44637600.

The previous prime is 45753559. The next prime is 45753593. The reversal of 45753581 is 18535754.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25593481 + 20160100 = 5059^2 + 4490^2 .

It is a cyclic number.

It is not a de Polignac number, because 45753581 - 2¹⁰ = 45752557 is a prime.

It is a super-2 number, since 2×45753581² = 4186780348647122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45753541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557930 + ... + 558011.

It is an arithmetic number, because the mean of its divisors is an integer number (11717391).

Almost surely, 2^45753581 is an apocalyptic number.

45753581 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

45753581 is a deficient number, since it is larger than the sum of its proper divisors (1115983).

45753581 is a wasteful number, since it uses less digits than its factorization.

45753581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115982.

The product of its digits is 84000, while the sum is 38.

The square root of 45753581 is about 6764.1393391916. The cubic root of 45753581 is about 357.6638360990.

The spelling of 45753581 in words is "forty-five million, seven hundred fifty-three thousand, five hundred eighty-one".