1032552221 has 4 divisors (see below), whose sum is σ = 1068157500. Its totient is φ = 996946944.

The previous prime is 1032552211. The next prime is 1032552277. The reversal of 1032552221 is 1222552301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 505620196 + 526932025 = 22486^2 + 22955^2 .

It is a cyclic number.

It is not a de Polignac number, because 1032552221 - 2²² = 1028357917 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 (1032552211) 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, 17802596 + ... + 17802653.

It is an arithmetic number, because the mean of its divisors is an integer number (267039375).

Almost surely, 2^1032552221 is an apocalyptic number.

It is an amenable number.

1032552221 is a deficient number, since it is larger than the sum of its proper divisors (35605279).

1032552221 is an equidigital number, since it uses as much as digits as its factorization.

1032552221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35605278.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1032552221 is about 32133.3506033840. The cubic root of 1032552221 is about 1010.7350858865.

The spelling of 1032552221 in words is "one billion, thirty-two million, five hundred fifty-two thousand, two hundred twenty-one".