505050051 has 32 divisors (see below), whose sum is σ = 770757120. Its totient is φ = 291334400.

The previous prime is 505050043. The next prime is 505050053. The reversal of 505050051 is 150050505.

It is a cyclic number.

It is not a de Polignac number, because 505050051 - 2³ = 505050043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505050053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64231 + ... + 71663.

It is an arithmetic number, because the mean of its divisors is an integer number (24086160).

Almost surely, 2^505050051 is an apocalyptic number.

505050051 is a deficient number, since it is larger than the sum of its proper divisors (265707069).

505050051 is a wasteful number, since it uses less digits than its factorization.

505050051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7547.

The product of its (nonzero) digits is 625, while the sum is 21.

The square root of 505050051 is about 22473.3186467865. The cubic root of 505050051 is about 796.3637318804.

The spelling of 505050051 in words is "five hundred five million, fifty thousand, fifty-one".