103000553 has 2 divisors, whose sum is σ = 103000554. Its totient is φ = 103000552.

The previous prime is 103000549. The next prime is 103000561. The reversal of 103000553 is 355000301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97673689 + 5326864 = 9883^2 + 2308^2 .

It is a cyclic number.

It is not a de Polignac number, because 103000553 - 2² = 103000549 is a prime.

It is a super-2 number, since 2×103000553² = 21218227836611618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103000543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51500276 + 51500277.

It is an arithmetic number, because the mean of its divisors is an integer number (51500277).

Almost surely, 2^103000553 is an apocalyptic number.

It is an amenable number.

103000553 is a deficient number, since it is larger than the sum of its proper divisors (1).

103000553 is an equidigital number, since it uses as much as digits as its factorization.

103000553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 103000553 is about 10148.9188094102. The cubic root of 103000553 is about 468.7556536681.

Adding to 103000553 its reverse (355000301), we get a palindrome (458000854).

The spelling of 103000553 in words is "one hundred three million, five hundred fifty-three", and thus it is an aban number.