45000553720 has 32 divisors (see below), whose sum is σ = 101309360400. Its totient is φ = 17989890048.

The previous prime is 45000553679. The next prime is 45000553723. The reversal of 45000553720 is 2735500054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45000553723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252105 + ... + 391864.

Almost surely, 2^45000553720 is an apocalyptic number.

45000553720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45000553720 is an abundant number, since it is smaller than the sum of its proper divisors (56308806680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45000553720 is a wasteful number, since it uses less digits than its factorization.

45000553720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645727 (or 645723 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 31.

The spelling of 45000553720 in words is "forty-five billion, five hundred fifty-three thousand, seven hundred twenty".