42100545225 has 24 divisors (see below), whose sum is σ = 69685352352. Its totient is φ = 22428102400.

The previous prime is 42100545199. The next prime is 42100545257. The reversal of 42100545225 is 52254500124.

It is not a de Polignac number, because 42100545225 - 2¹³ = 42100537033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42100545192 and 42100545201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252507 + ... + 384656.

It is an arithmetic number, because the mean of its divisors is an integer number (2903556348).

Almost surely, 2^42100545225 is an apocalyptic number.

It is an amenable number.

42100545225 is a deficient number, since it is larger than the sum of its proper divisors (27584807127).

42100545225 is a wasteful number, since it uses less digits than its factorization.

42100545225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638057 (or 638052 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The spelling of 42100545225 in words is "forty-two billion, one hundred million, five hundred forty-five thousand, two hundred twenty-five".