1061555052 has 12 divisors (see below), whose sum is σ = 2476961816. Its totient is φ = 353851680.

The previous prime is 1061554993. The next prime is 1061555059. The reversal of 1061555052 is 2505551601.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1061555052² = 2253798256853445408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061555059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44231449 + ... + 44231472.

Almost surely, 2^1061555052 is an apocalyptic number.

1061555052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1061555052 is an abundant number, since it is smaller than the sum of its proper divisors (1415406764).

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

1061555052 is a wasteful number, since it uses less digits than its factorization.

1061555052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88462928 (or 88462926 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 1061555052 is about 32581.5139611406. The cubic root of 1061555052 is about 1020.1111797303. Note that the first 4 decimals are identical.

The spelling of 1061555052 in words is "one billion, sixty-one million, five hundred fifty-five thousand, fifty-two".