1955506949 has 8 divisors (see below), whose sum is σ = 2137186848. Its totient is φ = 1774478160.

The previous prime is 1955506933. The next prime is 1955506967. The reversal of 1955506949 is 9496055591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1955506949 - 2⁴ = 1955506933 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 1955506949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955506919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156482 + ... + 168515.

It is an arithmetic number, because the mean of its divisors is an integer number (267148356).

Almost surely, 2^1955506949 is an apocalyptic number.

It is an amenable number.

1955506949 is a deficient number, since it is larger than the sum of its proper divisors (181679899).

1955506949 is a wasteful number, since it uses less digits than its factorization.

1955506949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325555.

The product of its (nonzero) digits is 2187000, while the sum is 53.

The square root of 1955506949 is about 44221.1142894432. The cubic root of 1955506949 is about 1250.5079426874.

The spelling of 1955506949 in words is "one billion, nine hundred fifty-five million, five hundred six thousand, nine hundred forty-nine".