57445007 has 4 divisors (see below), whose sum is σ = 59942640. Its totient is φ = 54947376.

The previous prime is 57444997. The next prime is 57445039. The reversal of 57445007 is 70054475.

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

It is a cyclic number.

It is not a de Polignac number, because 57445007 - 2⁴ = 57444991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57445067) 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, 1248782 + ... + 1248827.

It is an arithmetic number, because the mean of its divisors is an integer number (14985660).

Almost surely, 2^57445007 is an apocalyptic number.

57445007 is a deficient number, since it is larger than the sum of its proper divisors (2497633).

57445007 is a wasteful number, since it uses less digits than its factorization.

57445007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497632.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 57445007 is about 7579.2484455914. The cubic root of 57445007 is about 385.8490443040.

The spelling of 57445007 in words is "fifty-seven million, four hundred forty-five thousand, seven".