1955312450 has 96 divisors (see below), whose sum is σ = 4516960896. Its totient is φ = 613186560.

The previous prime is 1955312449. The next prime is 1955312453. The reversal of 1955312450 is 542135591.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1955312450.

It is not an unprimeable number, because it can be changed into a prime (1955312453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 512249 + ... + 516051.

It is an arithmetic number, because the mean of its divisors is an integer number (47051676).

Almost surely, 2^1955312450 is an apocalyptic number.

1955312450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1955312450 is an abundant number, since it is smaller than the sum of its proper divisors (2561648446).

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

1955312450 is a wasteful number, since it uses less digits than its factorization.

1955312450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948 (or 3943 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 1955312450 is about 44218.9150703633. The cubic root of 1955312450 is about 1250.4664818941.

The spelling of 1955312450 in words is "one billion, nine hundred fifty-five million, three hundred twelve thousand, four hundred fifty".