52494445440 has 128 divisors (see below), whose sum is σ = 185917888800. Its totient is φ = 13998514176.

The previous prime is 52494445411. The next prime is 52494445441. The reversal of 52494445440 is 4454449425.

52494445440 is a `hidden beast` number, since 524 + 9 + 44 + 45 + 4 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52494445441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1501657 + ... + 1536216.

Almost surely, 2^52494445440 is an apocalyptic number.

It is an amenable number.

52494445440 is an abundant number, since it is smaller than the sum of its proper divisors (133423443360).

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

52494445440 is a wasteful number, since it uses less digits than its factorization.

52494445440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037901 (or 3037883 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 45.

The spelling of 52494445440 in words is "fifty-two billion, four hundred ninety-four million, four hundred forty-five thousand, four hundred forty".