15405230500 has 48 divisors (see below), whose sum is σ = 36703675008. Its totient is φ = 5601900000.

The previous prime is 15405230461. The next prime is 15405230537. The reversal of 15405230500 is 503250451.

It is a super-2 number, since 2×15405230500² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1394976 + ... + 1405975.

It is an arithmetic number, because the mean of its divisors is an integer number (764659896).

Almost surely, 2^15405230500 is an apocalyptic number.

15405230500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15405230500 is an abundant number, since it is smaller than the sum of its proper divisors (21298444508).

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

15405230500 is a wasteful number, since it uses less digits than its factorization.

15405230500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800981 (or 2800969 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 15405230500 its reverse (503250451), we get a palindrome (15908480951).

The spelling of 15405230500 in words is "fifteen billion, four hundred five million, two hundred thirty thousand, five hundred".