551761039 has 2 divisors, whose sum is σ = 551761040. Its totient is φ = 551761038.

The previous prime is 551761037. The next prime is 551761087. The reversal of 551761039 is 930167155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551761039 - 2¹ = 551761037 is a prime.

Together with 551761037, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 551760989 and 551761007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551761037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275880519 + 275880520.

It is an arithmetic number, because the mean of its divisors is an integer number (275880520).

Almost surely, 2^551761039 is an apocalyptic number.

551761039 is a deficient number, since it is larger than the sum of its proper divisors (1).

551761039 is an equidigital number, since it uses as much as digits as its factorization.

551761039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 551761039 is about 23489.5942706553. The cubic root of 551761039 is about 820.1947975636.

The spelling of 551761039 in words is "five hundred fifty-one million, seven hundred sixty-one thousand, thirty-nine".