497555520 has 448 divisors, whose sum is σ = 2022506496. Its totient is φ = 100638720.

The previous prime is 497555519. The next prime is 497555561. The reversal of 497555520 is 25555794.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×497555520² = 495122990964940800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3917697 + ... + 3917823.

Almost surely, 2^497555520 is an apocalyptic number.

497555520 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 497555520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011253248).

497555520 is an abundant number, since it is smaller than the sum of its proper divisors (1524950976).

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

497555520 is a wasteful number, since it uses less digits than its factorization.

497555520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 42.

The square root of 497555520 is about 22305.9525687651. The cubic root of 497555520 is about 792.4049556463.

The spelling of 497555520 in words is "four hundred ninety-seven million, five hundred fifty-five thousand, five hundred twenty".