1955084550 has 48 divisors (see below), whose sum is σ = 4852195392. Its totient is φ = 520970400.

The previous prime is 1955084513. The next prime is 1955084557. The reversal of 1955084550 is 554805591.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955084557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240045 + ... + 248055.

It is an arithmetic number, because the mean of its divisors is an integer number (101087404).

Almost surely, 2^1955084550 is an apocalyptic number.

1955084550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1955084550 is an abundant number, since it is smaller than the sum of its proper divisors (2897110842).

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

1955084550 is a wasteful number, since it uses less digits than its factorization.

1955084550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9653 (or 9648 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 42.

The square root of 1955084550 is about 44216.3380437593. The cubic root of 1955084550 is about 1250.4178976070.

The spelling of 1955084550 in words is "one billion, nine hundred fifty-five million, eighty-four thousand, five hundred fifty".