82557755552501 has 4 divisors (see below), whose sum is σ = 86902900581600. Its totient is φ = 78212610523404.

The previous prime is 82557755552497. The next prime is 82557755552581. The reversal of 82557755552501 is 10525555775528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82557755552501 - 2² = 82557755552497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82557755552581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2172572514521 + ... + 2172572514558.

It is an arithmetic number, because the mean of its divisors is an integer number (21725725145400).

Almost surely, 2^{82557755552501} is an apocalyptic number.

It is an amenable number.

82557755552501 is a deficient number, since it is larger than the sum of its proper divisors (4345145029099).

82557755552501 is a wasteful number, since it uses less digits than its factorization.

82557755552501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345145029098.

The product of its (nonzero) digits is 122500000, while the sum is 62.

The spelling of 82557755552501 in words is "eighty-two trillion, five hundred fifty-seven billion, seven hundred fifty-five million, five hundred fifty-two thousand, five hundred one".