1021535552 has 14 divisors (see below), whose sum is σ = 2027109738. Its totient is φ = 510767744.

The previous prime is 1021535521. The next prime is 1021535561. The reversal of 1021535552 is 2555351201.

It can be written as a sum of positive squares in only one way, i.e., 947162176 + 74373376 = 30776^2 + 8624^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7980683 + ... + 7980810.

Almost surely, 2^1021535552 is an apocalyptic number.

It is an amenable number.

1021535552 is a deficient number, since it is larger than the sum of its proper divisors (1005574186).

1021535552 is an equidigital number, since it uses as much as digits as its factorization.

1021535552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15961505 (or 15961495 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 1021535552 is about 31961.4698034993. The cubic root of 1021535552 is about 1007.1275940365.

Adding to 1021535552 its reverse (2555351201), we get a palindrome (3576886753).

The spelling of 1021535552 in words is "one billion, twenty-one million, five hundred thirty-five thousand, five hundred fifty-two".