61286550203 has 2 divisors, whose sum is σ = 61286550204. Its totient is φ = 61286550202.

The previous prime is 61286550181. The next prime is 61286550209. The reversal of 61286550203 is 30205568216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61286550203 - 2³⁴ = 44106681019 is a prime.

It is not a weakly prime, because it can be changed into another prime (61286550209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30643275101 + 30643275102.

It is an arithmetic number, because the mean of its divisors is an integer number (30643275102).

Almost surely, 2^61286550203 is an apocalyptic number.

61286550203 is a deficient number, since it is larger than the sum of its proper divisors (1).

61286550203 is an equidigital number, since it uses as much as digits as its factorization.

61286550203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 61286550203 in words is "sixty-one billion, two hundred eighty-six million, five hundred fifty thousand, two hundred three".