1572055550 has 24 divisors (see below), whose sum is σ = 3148949496. Its totient is φ = 580451040.

The previous prime is 1572055549. The next prime is 1572055561. The reversal of 1572055550 is 555502751.

It is a self number, because there is not a number n which added to its sum of digits gives 1572055550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1208624 + ... + 1209923.

It is an arithmetic number, because the mean of its divisors is an integer number (131206229).

Almost surely, 2^1572055550 is an apocalyptic number.

1572055550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1572055550 is an abundant number, since it is smaller than the sum of its proper divisors (1576893946).

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

1572055550 is a wasteful number, since it uses less digits than its factorization.

1572055550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418572 (or 2418567 counting only the distinct ones).

The product of its (nonzero) digits is 43750, while the sum is 35.

The square root of 1572055550 is about 39649.1557287163. The cubic root of 1572055550 is about 1162.7578924508.

The spelling of 1572055550 in words is "one billion, five hundred seventy-two million, fifty-five thousand, five hundred fifty".