515500150 has 48 divisors (see below), whose sum is σ = 1091501568. Its totient is φ = 179300000.

The previous prime is 515500103. The next prime is 515500159. The reversal of 515500150 is 51005515.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515500159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7726 + ... + 33025.

It is an arithmetic number, because the mean of its divisors is an integer number (22739616).

Almost surely, 2^515500150 is an apocalyptic number.

515500150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

515500150 is an abundant number, since it is smaller than the sum of its proper divisors (576001418).

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

515500150 is a wasteful number, since it uses less digits than its factorization.

515500150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40797 (or 40792 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 515500150 is about 22704.6283827769. The cubic root of 515500150 is about 801.8188563596.

Adding to 515500150 its reverse (51005515), we get a palindrome (566505665).

The spelling of 515500150 in words is "five hundred fifteen million, five hundred thousand, one hundred fifty".