1955224021125 has 16 divisors (see below), whose sum is σ = 3253492771776. Its totient is φ = 1042786144400.

The previous prime is 1955224021103. The next prime is 1955224021171. The reversal of 1955224021125 is 5211204225591.

It is not a de Polignac number, because 1955224021125 - 2¹⁶ = 1955223955589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2606964987 + ... + 2606965736.

It is an arithmetic number, because the mean of its divisors is an integer number (203343298236).

Almost surely, 2^{1955224021125} is an apocalyptic number.

1955224021125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1955224021125 is a deficient number, since it is larger than the sum of its proper divisors (1298268750651).

1955224021125 is an equidigital number, since it uses as much as digits as its factorization.

1955224021125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5213930741 (or 5213930731 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 39.

The spelling of 1955224021125 in words is "one trillion, nine hundred fifty-five billion, two hundred twenty-four million, twenty-one thousand, one hundred twenty-five".