102500000055421 has 8 divisors (see below), whose sum is σ = 107540983666688. Its totient is φ = 97567424694000.

The previous prime is 102500000055419. The next prime is 102500000055433. The reversal of 102500000055421 is 124550000005201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102500000055421 - 2¹ = 102500000055419 is a prime.

It is a super-3 number, since 3×102500000055421³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102500000052421) 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 7 ways as a sum of consecutive naturals, for example, 27102060525 + ... + 27102064306.

It is an arithmetic number, because the mean of its divisors is an integer number (13442622958336).

Almost surely, 2^{102500000055421} is an apocalyptic number.

It is an amenable number.

102500000055421 is a deficient number, since it is larger than the sum of its proper divisors (5040983611267).

102500000055421 is an equidigital number, since it uses as much as digits as its factorization.

102500000055421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54204124923.

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 102500000055421 in words is "one hundred two trillion, five hundred billion, fifty-five thousand, four hundred twenty-one".