54405253512 has 24 divisors (see below), whose sum is σ = 147347561790. Its totient is φ = 18135084480.

The previous prime is 54405253499. The next prime is 54405253517. The reversal of 54405253512 is 21535250445.

54405253512 is a `hidden beast` number, since 5 + 4 + 40 + 52 + 53 + 512 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29506307076 + 24898946436 = 171774^2 + 157794^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (54405253517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 377814189 + ... + 377814332.

Almost surely, 2^54405253512 is an apocalyptic number.

It is an amenable number.

54405253512 is an abundant number, since it is smaller than the sum of its proper divisors (92942308278).

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

54405253512 is a wasteful number, since it uses less digits than its factorization.

54405253512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755628533 (or 755628526 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 54405253512 in words is "fifty-four billion, four hundred five million, two hundred fifty-three thousand, five hundred twelve".