10001020550 has 24 divisors (see below), whose sum is σ = 18737691336. Its totient is φ = 3971205440.

The previous prime is 10001020541. The next prime is 10001020567. The reversal of 10001020550 is 5502010001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 723152 + ... + 736851.

It is an arithmetic number, because the mean of its divisors is an integer number (780737139).

Almost surely, 2^10001020550 is an apocalyptic number.

10001020550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10001020550 is a deficient number, since it is larger than the sum of its proper divisors (8736670786).

10001020550 is a wasteful number, since it uses less digits than its factorization.

10001020550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460152 (or 1460147 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

Adding to 10001020550 its reverse (5502010001), we get a palindrome (15503030551).

The spelling of 10001020550 in words is "ten billion, one million, twenty thousand, five hundred fifty".