1955048921 has 8 divisors (see below), whose sum is σ = 2331487104. Its totient is φ = 1602897120.

The previous prime is 1955048911. The next prime is 1955048923. The reversal of 1955048921 is 1298405591.

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 1955048921 - 2⁶ = 1955048857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1955048923) 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, 6071420 + ... + 6071741.

It is an arithmetic number, because the mean of its divisors is an integer number (291435888).

Almost surely, 2^1955048921 is an apocalyptic number.

It is an amenable number.

1955048921 is a deficient number, since it is larger than the sum of its proper divisors (376438183).

1955048921 is a wasteful number, since it uses less digits than its factorization.

1955048921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12143191.

The product of its (nonzero) digits is 129600, while the sum is 44.

The square root of 1955048921 is about 44215.9351478627. The cubic root of 1955048921 is about 1250.4103017872.

The spelling of 1955048921 in words is "one billion, nine hundred fifty-five million, forty-eight thousand, nine hundred twenty-one".