1011552533 has 16 divisors (see below), whose sum is σ = 1107099840. Its totient is φ = 920937600.

The previous prime is 1011552499. The next prime is 1011552557. The reversal of 1011552533 is 3352551101.

It is a happy number.

It is not a de Polignac number, because 1011552533 - 2¹⁰ = 1011551509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011551533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42503 + ... + 61883.

It is an arithmetic number, because the mean of its divisors is an integer number (69193740).

Almost surely, 2^1011552533 is an apocalyptic number.

It is an amenable number.

1011552533 is a deficient number, since it is larger than the sum of its proper divisors (95547307).

1011552533 is a wasteful number, since it uses less digits than its factorization.

1011552533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19508.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 1011552533 is about 31804.9136612568. The cubic root of 1011552533 is about 1003.8361097780.

The spelling of 1011552533 in words is "one billion, eleven million, five hundred fifty-two thousand, five hundred thirty-three".