42555400245 has 32 divisors (see below), whose sum is σ = 75665184000. Its totient is φ = 22692871872.

The previous prime is 42555400241. The next prime is 42555400249. The reversal of 42555400245 is 54200455524.

42555400245 is a `hidden beast` number, since 4 + 2 + 5 + 5 + 5 + 400 + 245 = 666.

It is an interprime number because it is at equal distance from previous prime (42555400241) and next prime (42555400249).

It is not a de Polignac number, because 42555400245 - 2² = 42555400241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42555400241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1096431 + ... + 1134579.

It is an arithmetic number, because the mean of its divisors is an integer number (2364537000).

Almost surely, 2^42555400245 is an apocalyptic number.

42555400245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42555400245 is a deficient number, since it is larger than the sum of its proper divisors (33109783755).

42555400245 is a wasteful number, since it uses less digits than its factorization.

42555400245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46426 (or 46420 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

Adding to 42555400245 its reverse (54200455524), we get a palindrome (96755855769).

The spelling of 42555400245 in words is "forty-two billion, five hundred fifty-five million, four hundred thousand, two hundred forty-five".