275425920 has 768 divisors, whose sum is σ = 1283143680. Its totient is φ = 54743040.

The previous prime is 275425901. The next prime is 275425937. The reversal of 275425920 is 29524572.

It is a happy number.

275425920 is a `hidden beast` number, since 27 + 5 + 42 + 592 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 11975029 + ... + 11975051.

It is an arithmetic number, because the mean of its divisors is an integer number (1670760).

Almost surely, 2^275425920 is an apocalyptic number.

275425920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275425920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641571840).

275425920 is an abundant number, since it is smaller than the sum of its proper divisors (1007717760).

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

275425920 is a wasteful number, since it uses less digits than its factorization.

275425920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 275425920 is about 16595.9609544009. The cubic root of 275425920 is about 650.6312762560.

The spelling of 275425920 in words is "two hundred seventy-five million, four hundred twenty-five thousand, nine hundred twenty".