505151441 has 4 divisors (see below), whose sum is σ = 515899392. Its totient is φ = 494403492.

The previous prime is 505151429. The next prime is 505151443. The reversal of 505151441 is 144151505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505151441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505151441.

It is not an unprimeable number, because it can be changed into a prime (505151443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5373905 + ... + 5373998.

It is an arithmetic number, because the mean of its divisors is an integer number (128974848).

Almost surely, 2^505151441 is an apocalyptic number.

It is an amenable number.

505151441 is a deficient number, since it is larger than the sum of its proper divisors (10747951).

505151441 is a wasteful number, since it uses less digits than its factorization.

505151441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10747950.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 505151441 is about 22475.5743196920. The cubic root of 505151441 is about 796.4170189530.

The spelling of 505151441 in words is "five hundred five million, one hundred fifty-one thousand, four hundred forty-one".