1955086650 has 72 divisors (see below), whose sum is σ = 5730195744. Its totient is φ = 473959200.

The previous prime is 1955086619. The next prime is 1955086669. The reversal of 1955086650 is 566805591.

It is a happy number.

1955086650 is a `hidden beast` number, since 1 + 95 + 508 + 6 + 6 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1955086596 and 1955086605.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 192534 + ... + 202433.

It is an arithmetic number, because the mean of its divisors is an integer number (79586052).

Almost surely, 2^1955086650 is an apocalyptic number.

1955086650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1955086650 is an abundant number, since it is smaller than the sum of its proper divisors (3775109094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1955086650 is a wasteful number, since it uses less digits than its factorization.

1955086650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394996 (or 394988 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The square root of 1955086650 is about 44216.3617906313. The cubic root of 1955086650 is about 1250.4183453075.

The spelling of 1955086650 in words is "one billion, nine hundred fifty-five million, eighty-six thousand, six hundred fifty".