505450451 has 8 divisors (see below), whose sum is σ = 566303664. Its totient is φ = 447081120.

The previous prime is 505450447. The next prime is 505450471. The reversal of 505450451 is 154054505.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505450451 - 2² = 505450447 is a prime.

It is a super-2 number, since 2×505450451² = 510960316832206802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505450411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620540 + ... + 621353.

It is an arithmetic number, because the mean of its divisors is an integer number (70787958).

Almost surely, 2^505450451 is an apocalyptic number.

505450451 is a deficient number, since it is larger than the sum of its proper divisors (60853213).

505450451 is a wasteful number, since it uses less digits than its factorization.

505450451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241941.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 505450451 is about 22482.2252234960. The cubic root of 505450451 is about 796.5741267448.

The spelling of 505450451 in words is "five hundred five million, four hundred fifty thousand, four hundred fifty-one".