57780103531 has 2 divisors, whose sum is σ = 57780103532. Its totient is φ = 57780103530.

The previous prime is 57780103529. The next prime is 57780103543. The reversal of 57780103531 is 13530108775.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57780103531 - 2¹ = 57780103529 is a prime.

It is a super-2 number, since 2×57780103531² (a number of 22 digits) contains 22 as substring.

Together with 57780103529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (57780103561) 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 as a sum of consecutive naturals, namely, 28890051765 + 28890051766.

It is an arithmetic number, because the mean of its divisors is an integer number (28890051766).

Almost surely, 2^57780103531 is an apocalyptic number.

57780103531 is a deficient number, since it is larger than the sum of its proper divisors (1).

57780103531 is an equidigital number, since it uses as much as digits as its factorization.

57780103531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 57780103531 in words is "fifty-seven billion, seven hundred eighty million, one hundred three thousand, five hundred thirty-one".