999955072235525 has 12 divisors (see below), whose sum is σ = 1417079188082592. Its totient is φ = 685683478104240.

The previous prime is 999955072235473. The next prime is 999955072235543. The reversal of 999955072235525 is 525532270559999.

It is not a de Polignac number, because 999955072235525 - 2⁸ = 999955072235269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2857014491927 + ... + 2857014492276.

It is an arithmetic number, because the mean of its divisors is an integer number (118089932340216).

Almost surely, 2^{999955072235525} is an apocalyptic number.

It is an amenable number.

999955072235525 is a deficient number, since it is larger than the sum of its proper divisors (417124115847067).

999955072235525 is a wasteful number, since it uses less digits than its factorization.

999955072235525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714028984220 (or 5714028984215 counting only the distinct ones).

The product of its (nonzero) digits is 3444525000, while the sum is 77.

The spelling of 999955072235525 in words is "nine hundred ninety-nine trillion, nine hundred fifty-five billion, seventy-two million, two hundred thirty-five thousand, five hundred twenty-five".