505054551 has 16 divisors (see below), whose sum is σ = 693100544. Its totient is φ = 326895264.

The previous prime is 505054549. The next prime is 505054553. The reversal of 505054551 is 155450505.

It is an interprime number because it is at equal distance from previous prime (505054549) and next prime (505054553).

It is not a de Polignac number, because 505054551 - 2¹ = 505054549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505054553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49386 + ... + 58728.

It is an arithmetic number, because the mean of its divisors is an integer number (43318784).

Almost surely, 2^505054551 is an apocalyptic number.

505054551 is a deficient number, since it is larger than the sum of its proper divisors (188045993).

505054551 is a wasteful number, since it uses less digits than its factorization.

505054551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9870.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 505054551 is about 22473.4187652880. The cubic root of 505054551 is about 796.3660970758.

The spelling of 505054551 in words is "five hundred five million, fifty-four thousand, five hundred fifty-one".