15151530550 has 96 divisors (see below), whose sum is σ = 31425488640. Its totient is φ = 5397235200.

The previous prime is 15151530539. The next prime is 15151530553. The reversal of 15151530550 is 5503515151.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15151530553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7837384 + ... + 7839316.

It is an arithmetic number, because the mean of its divisors is an integer number (327348840).

Almost surely, 2^15151530550 is an apocalyptic number.

15151530550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15151530550 is an abundant number, since it is smaller than the sum of its proper divisors (16273958090).

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

15151530550 is a wasteful number, since it uses less digits than its factorization.

15151530550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378 (or 2373 counting only the distinct ones).

The product of its (nonzero) digits is 9375, while the sum is 31.

The spelling of 15151530550 in words is "fifteen billion, one hundred fifty-one million, five hundred thirty thousand, five hundred fifty".