1540530552 has 32 divisors (see below), whose sum is σ = 4201447680. Its totient is φ = 466827360.

The previous prime is 1540530517. The next prime is 1540530553. The reversal of 1540530552 is 2550350451.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540530553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2917408 + ... + 2917935.

It is an arithmetic number, because the mean of its divisors is an integer number (131295240).

Almost surely, 2^1540530552 is an apocalyptic number.

1540530552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1540530552 is an abundant number, since it is smaller than the sum of its proper divisors (2660917128).

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

1540530552 is a wasteful number, since it uses less digits than its factorization.

1540530552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5835363 (or 5835359 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 1540530552 is about 39249.5930169983. The cubic root of 1540530552 is about 1154.9329501378.

The spelling of 1540530552 in words is "one billion, five hundred forty million, five hundred thirty thousand, five hundred fifty-two".