1955054650 has 12 divisors (see below), whose sum is σ = 3636401742. Its totient is φ = 782021840.

The previous prime is 1955054627. The next prime is 1955054657. The reversal of 1955054650 is 564505591.

It can be written as a sum of positive squares in 3 ways, for example, as 1633533889 + 321520761 = 40417^2 + 17931^2 .

It is not an unprimeable number, because it can be changed into a prime (1955054657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19550497 + ... + 19550596.

Almost surely, 2^1955054650 is an apocalyptic number.

1955054650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1955054650 is a deficient number, since it is larger than the sum of its proper divisors (1681347092).

1955054650 is a wasteful number, since it uses less digits than its factorization.

1955054650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39101105 (or 39101100 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 1955054650 is about 44215.9999321513. Note that the first 4 decimals coincide. The cubic root of 1955054650 is about 1250.4115231707.

The spelling of 1955054650 in words is "one billion, nine hundred fifty-five million, fifty-four thousand, six hundred fifty".