100504998557 has 2 divisors, whose sum is σ = 100504998558. Its totient is φ = 100504998556.

The previous prime is 100504998523. The next prime is 100504998569. The reversal of 100504998557 is 755899405001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91582495876 + 8922502681 = 302626^2 + 94459^2 .

It is a cyclic number.

It is not a de Polignac number, because 100504998557 - 2¹⁰ = 100504997533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100504998499 and 100504998508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100504997557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50252499278 + 50252499279.

It is an arithmetic number, because the mean of its divisors is an integer number (50252499279).

Almost surely, 2^100504998557 is an apocalyptic number.

It is an amenable number.

100504998557 is a deficient number, since it is larger than the sum of its proper divisors (1).

100504998557 is an equidigital number, since it uses as much as digits as its factorization.

100504998557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268000, while the sum is 53.

The spelling of 100504998557 in words is "one hundred billion, five hundred four million, nine hundred ninety-eight thousand, five hundred fifty-seven".