42515551101 has 24 divisors (see below), whose sum is σ = 58147528320. Its totient is φ = 27631559680.

The previous prime is 42515551097. The next prime is 42515551103. The reversal of 42515551101 is 10115551524.

It is not a de Polignac number, because 42515551101 - 2² = 42515551097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42515551103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9523996 + ... + 9528458.

It is an arithmetic number, because the mean of its divisors is an integer number (2422813680).

Almost surely, 2^42515551101 is an apocalyptic number.

42515551101 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

42515551101 is a deficient number, since it is larger than the sum of its proper divisors (15631977219).

42515551101 is a wasteful number, since it uses less digits than its factorization.

42515551101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6437 (or 6396 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 30.

The spelling of 42515551101 in words is "forty-two billion, five hundred fifteen million, five hundred fifty-one thousand, one hundred one".