15230472520 has 32 divisors (see below), whose sum is σ = 34295513400. Its totient is φ = 6087397888.

The previous prime is 15230472493. The next prime is 15230472539. The reversal of 15230472520 is 2527403251.

It can be written as a sum of positive squares in 4 ways, for example, as 12271765284 + 2958707236 = 110778^2 + 54394^2 .

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, 98005 + ... + 200164.

Almost surely, 2^15230472520 is an apocalyptic number.

15230472520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15230472520 is an abundant number, since it is smaller than the sum of its proper divisors (19065040880).

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

15230472520 is a wasteful number, since it uses less digits than its factorization.

15230472520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299457 (or 299453 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

Adding to 15230472520 its reverse (2527403251), we get a palindrome (17757875771).

The spelling of 15230472520 in words is "fifteen billion, two hundred thirty million, four hundred seventy-two thousand, five hundred twenty".