1545675552 has 72 divisors (see below), whose sum is σ = 4427251920. Its totient is φ = 511505280.

The previous prime is 1545675529. The next prime is 1545675587. The reversal of 1545675552 is 2555765451.

1545675552 is a `hidden beast` number, since 1 + 545 + 6 + 7 + 55 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×1545675552² = 4778225824101009408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1545675498 and 1545675507.

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, 20727 + ... + 59337.

It is an arithmetic number, because the mean of its divisors is an integer number (61489610).

Almost surely, 2^1545675552 is an apocalyptic number.

1545675552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1545675552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2213625960).

1545675552 is an abundant number, since it is smaller than the sum of its proper divisors (2881576368).

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

1545675552 is a wasteful number, since it uses less digits than its factorization.

1545675552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38766 (or 38755 counting only the distinct ones).

The product of its digits is 1050000, while the sum is 45.

The square root of 1545675552 is about 39315.0804653889. The cubic root of 1545675552 is about 1156.2172538201.

The spelling of 1545675552 in words is "one billion, five hundred forty-five million, six hundred seventy-five thousand, five hundred fifty-two".