505874078 has 4 divisors (see below), whose sum is σ = 758811120. Its totient is φ = 252937038.

The previous prime is 505874071. The next prime is 505874081. The reversal of 505874078 is 870478505.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505874071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126468518 + ... + 126468521.

It is an arithmetic number, because the mean of its divisors is an integer number (189702780).

Almost surely, 2^505874078 is an apocalyptic number.

505874078 is a deficient number, since it is larger than the sum of its proper divisors (252937042).

505874078 is a wasteful number, since it uses less digits than its factorization.

505874078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252937041.

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 505874078 is about 22491.6446263940. The cubic root of 505874078 is about 796.7966055762.

The spelling of 505874078 in words is "five hundred five million, eight hundred seventy-four thousand, seventy-eight".