1565526552 has 16 divisors (see below), whose sum is σ = 3913816440. Its totient is φ = 521842176.

The previous prime is 1565526541. The next prime is 1565526689. The reversal of 1565526552 is 2556255651.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32615113 + ... + 32615160.

Almost surely, 2^1565526552 is an apocalyptic number.

1565526552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1565526552 is an abundant number, since it is smaller than the sum of its proper divisors (2348289888).

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

1565526552 is a wasteful number, since it uses less digits than its factorization.

1565526552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65230282 (or 65230278 counting only the distinct ones).

The product of its digits is 450000, while the sum is 42.

The square root of 1565526552 is about 39566.7354225744. The cubic root of 1565526552 is about 1161.1459523720.

The spelling of 1565526552 in words is "one billion, five hundred sixty-five million, five hundred twenty-six thousand, five hundred fifty-two".