775520054 has 4 divisors (see below), whose sum is σ = 1163280084. Its totient is φ = 387760026.

The previous prime is 775520051. The next prime is 775520107. The reversal of 775520054 is 450025577.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 775519996 and 775520023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775520051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193880012 + ... + 193880015.

It is an arithmetic number, because the mean of its divisors is an integer number (290820021).

Almost surely, 2^775520054 is an apocalyptic number.

775520054 is a deficient number, since it is larger than the sum of its proper divisors (387760030).

775520054 is a wasteful number, since it uses less digits than its factorization.

775520054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387760029.

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 775520054 is about 27848.1606933025. The cubic root of 775520054 is about 918.7506884842.

The spelling of 775520054 in words is "seven hundred seventy-five million, five hundred twenty thousand, fifty-four".