42555364515 has 12 divisors (see below), whose sum is σ = 73762631904. Its totient is φ = 22696194384.

The previous prime is 42555364499. The next prime is 42555364517. The reversal of 42555364515 is 51546355524.

42555364515 is a `hidden beast` number, since 4 + 25 + 5 + 53 + 64 + 515 = 666.

It is not a de Polignac number, because 42555364515 - 2⁴ = 42555364499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 945674767 = 42555364515 / (4 + 2 + 5 + 5 + 5 + 3 + 6 + 4 + 5 + 1 + 5).

It is not an unprimeable number, because it can be changed into a prime (42555364517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 472837339 + ... + 472837428.

It is an arithmetic number, because the mean of its divisors is an integer number (6146885992).

Almost surely, 2^42555364515 is an apocalyptic number.

42555364515 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42555364515 is a deficient number, since it is larger than the sum of its proper divisors (31207267389).

42555364515 is a wasteful number, since it uses less digits than its factorization.

42555364515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945674778 (or 945674775 counting only the distinct ones).

The product of its digits is 1800000, while the sum is 45.

The spelling of 42555364515 in words is "forty-two billion, five hundred fifty-five million, three hundred sixty-four thousand, five hundred fifteen".