54245431215 has 64 divisors (see below), whose sum is σ = 97262256000. Its totient is φ = 28684108800.

The previous prime is 54245431211. The next prime is 54245431237. The reversal of 54245431215 is 51213454245.

54245431215 is a `hidden beast` number, since 5 + 4 + 2 + 4 + 5 + 431 + 215 = 666.

It is not a de Polignac number, because 54245431215 - 2² = 54245431211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54245431215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54245431211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8524635 + ... + 8530995.

It is an arithmetic number, because the mean of its divisors is an integer number (1519722750).

Almost surely, 2^54245431215 is an apocalyptic number.

54245431215 is a deficient number, since it is larger than the sum of its proper divisors (43016824785).

54245431215 is a wasteful number, since it uses less digits than its factorization.

54245431215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6905 (or 6899 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The spelling of 54245431215 in words is "fifty-four billion, two hundred forty-five million, four hundred thirty-one thousand, two hundred fifteen".