1072556803 has 2 divisors, whose sum is σ = 1072556804. Its totient is φ = 1072556802.

The previous prime is 1072556801. The next prime is 1072556831. The reversal of 1072556803 is 3086552701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1072556803 - 2¹ = 1072556801 is a prime.

Together with 1072556801, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1072556801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536278401 + 536278402.

It is an arithmetic number, because the mean of its divisors is an integer number (536278402).

Almost surely, 2^1072556803 is an apocalyptic number.

1072556803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072556803 is an equidigital number, since it uses as much as digits as its factorization.

1072556803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 1072556803 is about 32749.9130227853. The cubic root of 1072556803 is about 1023.6231533013.

It can be divided in two parts, 10725 and 56803, that added together give a triangular number (67528 = T₃₆₇).

The spelling of 1072556803 in words is "one billion, seventy-two million, five hundred fifty-six thousand, eight hundred three".