255049421760 has 896 divisors, whose sum is σ = 1062167040000. Its totient is φ = 57582379008.

The previous prime is 255049421713. The next prime is 255049421797. The reversal of 255049421760 is 67124940552.

255049421760 is a `hidden beast` number, since 2 + 550 + 4 + 9 + 4 + 21 + 76 + 0 = 666.

It is a super-2 number, since 2×255049421760² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 263752797 + ... + 263753763.

Almost surely, 2^255049421760 is an apocalyptic number.

255049421760 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 255049421760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531083520000).

255049421760 is an abundant number, since it is smaller than the sum of its proper divisors (807117618240).

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

255049421760 is an equidigital number, since it uses as much as digits as its factorization.

255049421760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 255049421760 in words is "two hundred fifty-five billion, forty-nine million, four hundred twenty-one thousand, seven hundred sixty".