1955316601 has 4 divisors (see below), whose sum is σ = 2234647552. Its totient is φ = 1675985652.

The previous prime is 1955316589. The next prime is 1955316637. The reversal of 1955316601 is 1066135591.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1066135591 = 19597 ⋅54403.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1955316601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1955316101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139665465 + ... + 139665478.

It is an arithmetic number, because the mean of its divisors is an integer number (558661888).

Almost surely, 2^1955316601 is an apocalyptic number.

It is an amenable number.

1955316601 is a deficient number, since it is larger than the sum of its proper divisors (279330951).

1955316601 is an equidigital number, since it uses as much as digits as its factorization.

1955316601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279330950.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 1955316601 is about 44218.9620072656. The cubic root of 1955316601 is about 1250.4673667795.

The spelling of 1955316601 in words is "one billion, nine hundred fifty-five million, three hundred sixteen thousand, six hundred one".