511097020 has 48 divisors (see below), whose sum is σ = 1249795008. Its totient is φ = 171924480.

The previous prime is 511097009. The next prime is 511097029. The reversal of 511097020 is 20790115.

It is a super-2 number, since 2×511097020² = 522440327705760800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511097029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27021 + ... + 41860.

It is an arithmetic number, because the mean of its divisors is an integer number (26037396).

Almost surely, 2^511097020 is an apocalyptic number.

It is an amenable number.

511097020 is an abundant number, since it is smaller than the sum of its proper divisors (738697988).

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

511097020 is a wasteful number, since it uses less digits than its factorization.

511097020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68950 (or 68948 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 511097020 is about 22607.4549651216. The cubic root of 511097020 is about 799.5294211654.

The spelling of 511097020 in words is "five hundred eleven million, ninety-seven thousand, twenty".