1955256225 has 96 divisors (see below), whose sum is σ = 3597686400. Its totient is φ = 930908160.

The previous prime is 1955256223. The next prime is 1955256239. The reversal of 1955256225 is 5226525591.

It is a happy number.

It is not a de Polignac number, because 1955256225 - 2¹ = 1955256223 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1955256223) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6246669 + ... + 6246981.

It is an arithmetic number, because the mean of its divisors is an integer number (37475900).

Almost surely, 2^1955256225 is an apocalyptic number.

1955256225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1955256225 is a deficient number, since it is larger than the sum of its proper divisors (1642430175).

1955256225 is a wasteful number, since it uses less digits than its factorization.

1955256225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 526 counting only the distinct ones).

The product of its digits is 270000, while the sum is 42.

The square root of 1955256225 is about 44218.2793084489. The cubic root of 1955256225 is about 1250.4544960600.

The spelling of 1955256225 in words is "one billion, nine hundred fifty-five million, two hundred fifty-six thousand, two hundred twenty-five".