497255915520 has 1792 divisors, whose sum is σ = 2238866703360. Its totient is φ = 103195607040.

The previous prime is 497255915477. The next prime is 497255915531. The reversal of 497255915520 is 25519552794.

497255915520 is a `hidden beast` number, since 4 + 9 + 7 + 25 + 5 + 91 + 5 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (1792).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 8151736290 + ... + 8151736350.

It is an arithmetic number, because the mean of its divisors is an integer number (1249367580).

Almost surely, 2^497255915520 is an apocalyptic number.

497255915520 is a gapful number since it is divisible by the number (40) 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 497255915520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1119433351680).

497255915520 is an abundant number, since it is smaller than the sum of its proper divisors (1741610787840).

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

497255915520 is an frugal number, since it uses more digits than its factorization.

497255915520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 5670000, while the sum is 54.

The spelling of 497255915520 in words is "four hundred ninety-seven billion, two hundred fifty-five million, nine hundred fifteen thousand, five hundred twenty".