650550540 has 24 divisors (see below), whose sum is σ = 1821541680. Its totient is φ = 173480128.

The previous prime is 650550517. The next prime is 650550553. The reversal of 650550540 is 45055056.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 650550498 and 650550507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5421195 + ... + 5421314.

It is an arithmetic number, because the mean of its divisors is an integer number (75897570).

Almost surely, 2^650550540 is an apocalyptic number.

650550540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

650550540 is an abundant number, since it is smaller than the sum of its proper divisors (1170991140).

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

650550540 is a wasteful number, since it uses less digits than its factorization.

650550540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10842521 (or 10842519 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 650550540 is about 25505.8922604170. The cubic root of 650550540 is about 866.4836000580.

The spelling of 650550540 in words is "six hundred fifty million, five hundred fifty thousand, five hundred forty".