45257751 has 48 divisors (see below), whose sum is σ = 84268800. Its totient is φ = 23498640.

The previous prime is 45257747. The next prime is 45257759. The reversal of 45257751 is 15775254.

It is not a de Polignac number, because 45257751 - 2² = 45257747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45257759) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21880 + ... + 23858.

It is an arithmetic number, because the mean of its divisors is an integer number (1755600).

Almost surely, 2^45257751 is an apocalyptic number.

45257751 is a deficient number, since it is larger than the sum of its proper divisors (39011049).

45257751 is a wasteful number, since it uses less digits than its factorization.

45257751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017 (or 2000 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 45257751 is about 6727.3881261601. The cubic root of 45257751 is about 356.3671437475.

The spelling of 45257751 in words is "forty-five million, two hundred fifty-seven thousand, seven hundred fifty-one".