505525051 has 2 divisors, whose sum is σ = 505525052. Its totient is φ = 505525050.

The previous prime is 505525021. The next prime is 505525063. The reversal of 505525051 is 150525505.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505525051 - 2⁷ = 505524923 is a prime.

It is not a weakly prime, because it can be changed into another prime (505525021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252762525 + 252762526.

It is an arithmetic number, because the mean of its divisors is an integer number (252762526).

Almost surely, 2^505525051 is an apocalyptic number.

505525051 is a deficient number, since it is larger than the sum of its proper divisors (1).

505525051 is an equidigital number, since it uses as much as digits as its factorization.

505525051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 505525051 is about 22483.8842507250. The cubic root of 505525051 is about 796.6133139071.

The spelling of 505525051 in words is "five hundred five million, five hundred twenty-five thousand, fifty-one".