45251224456 has 8 divisors (see below), whose sum is σ = 84846045870. Its totient is φ = 22625612224.

The previous prime is 45251224453. The next prime is 45251224463. The reversal of 45251224456 is 65442215254.

It can be written as a sum of positive squares in only one way, i.e., 34614602500 + 10636621956 = 186050^2 + 103134^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (45251224453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828201521 + ... + 2828201536.

Almost surely, 2^45251224456 is an apocalyptic number.

It is an amenable number.

45251224456 is a deficient number, since it is larger than the sum of its proper divisors (39594821414).

45251224456 is a wasteful number, since it uses less digits than its factorization.

45251224456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656403063 (or 5656403059 counting only the distinct ones).

The product of its digits is 384000, while the sum is 40.

The spelling of 45251224456 in words is "forty-five billion, two hundred fifty-one million, two hundred twenty-four thousand, four hundred fifty-six".