505744454 has 4 divisors (see below), whose sum is σ = 758616684. Its totient is φ = 252872226.

The previous prime is 505744429. The next prime is 505744469. The reversal of 505744454 is 454447505.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126436112 + ... + 126436115.

It is an arithmetic number, because the mean of its divisors is an integer number (189654171).

Almost surely, 2^505744454 is an apocalyptic number.

505744454 is a deficient number, since it is larger than the sum of its proper divisors (252872230).

505744454 is a wasteful number, since it uses less digits than its factorization.

505744454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252872229.

The product of its (nonzero) digits is 224000, while the sum is 38.

The square root of 505744454 is about 22488.7628383600. The cubic root of 505744454 is about 796.7285433247.

The spelling of 505744454 in words is "five hundred five million, seven hundred forty-four thousand, four hundred fifty-four".