1500055500 has 48 divisors (see below), whose sum is σ = 4368165984. Its totient is φ = 400014400.

The previous prime is 1500055499. The next prime is 1500055519. The reversal of 1500055500 is 55500051.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

1500055500 is a modest number, since divided by 55500 gives 1500 as remainder.

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, 498519 + ... + 501518.

It is an arithmetic number, because the mean of its divisors is an integer number (91003458).

Almost surely, 2^1500055500 is an apocalyptic number.

1500055500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1500055500 is an abundant number, since it is smaller than the sum of its proper divisors (2868110484).

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

1500055500 is a wasteful number, since it uses less digits than its factorization.

1500055500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000059 (or 1000047 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 21.

The square root of 1500055500 is about 38730.5499573657. The cubic root of 1500055500 is about 1144.7283605215.

Adding to 1500055500 its reverse (55500051), we get a palindrome (1555555551).

It can be divided in two parts, 15000 and 55500, that added together give a triangular number (70500 = T₃₇₅).

The spelling of 1500055500 in words is "one billion, five hundred million, fifty-five thousand, five hundred".