1982253975 has 96 divisors (see below), whose sum is σ = 3802256640. Its totient is φ = 902461440.

The previous prime is 1982253967. The next prime is 1982253997. The reversal of 1982253975 is 5793522891.

It is not a de Polignac number, because 1982253975 - 2³ = 1982253967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 976912 + ... + 978938.

It is an arithmetic number, because the mean of its divisors is an integer number (39606840).

Almost surely, 2^1982253975 is an apocalyptic number.

1982253975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1982253975 is a deficient number, since it is larger than the sum of its proper divisors (1820002665).

1982253975 is a wasteful number, since it uses less digits than its factorization.

1982253975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129 (or 2124 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 51.

The square root of 1982253975 is about 44522.5108793293. The cubic root of 1982253975 is about 1256.1835419411.

The spelling of 1982253975 in words is "one billion, nine hundred eighty-two million, two hundred fifty-three thousand, nine hundred seventy-five".