1955356379 has 4 divisors (see below), whose sum is σ = 2003048040. Its totient is φ = 1907664720.

The previous prime is 1955356331. The next prime is 1955356387. The reversal of 1955356379 is 9736535591.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1955356379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1955356379.

It is not an unprimeable number, because it can be changed into a prime (1955356079) 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, 23845769 + ... + 23845850.

It is an arithmetic number, because the mean of its divisors is an integer number (500762010).

Almost surely, 2^1955356379 is an apocalyptic number.

1955356379 is a deficient number, since it is larger than the sum of its proper divisors (47691661).

1955356379 is an equidigital number, since it uses as much as digits as its factorization.

1955356379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47691660.

The product of its digits is 3827250, while the sum is 53.

The square root of 1955356379 is about 44219.4117893940. The cubic root of 1955356379 is about 1250.4758463532.

The spelling of 1955356379 in words is "one billion, nine hundred fifty-five million, three hundred fifty-six thousand, three hundred seventy-nine".