1001020052 has 12 divisors (see below), whose sum is σ = 1799130900. Its totient is φ = 486982656.

The previous prime is 1001020049. The next prime is 1001020079. The reversal of 1001020052 is 2500201001.

It can be written as a sum of positive squares in 2 ways, for example, as 943472656 + 57547396 = 30716^2 + 7586^2 .

It is a super-2 number, since 2×1001020052² = 2004082289012165408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3381677 + ... + 3381972.

It is an arithmetic number, because the mean of its divisors is an integer number (149927575).

Almost surely, 2^1001020052 is an apocalyptic number.

It is an amenable number.

1001020052 is a deficient number, since it is larger than the sum of its proper divisors (798110848).

1001020052 is a wasteful number, since it uses less digits than its factorization.

1001020052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6763690 (or 6763688 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1001020052 is about 31638.9009290778. The cubic root of 1001020052 is about 1000.3399017870.

Adding to 1001020052 its reverse (2500201001), we get a palindrome (3501221053).

The spelling of 1001020052 in words is "one billion, one million, twenty thousand, fifty-two".