505539772 has 12 divisors (see below), whose sum is σ = 887203296. Its totient is φ = 252053120.

The previous prime is 505539767. The next prime is 505539779. The reversal of 505539772 is 277935505.

It is a super-2 number, since 2×505539772² = 511140922147623968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505539779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177604 + ... + 180427.

It is an arithmetic number, because the mean of its divisors is an integer number (73933608).

Almost surely, 2^505539772 is an apocalyptic number.

It is an amenable number.

505539772 is a deficient number, since it is larger than the sum of its proper divisors (381663524).

505539772 is a wasteful number, since it uses less digits than its factorization.

505539772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358388 (or 358386 counting only the distinct ones).

The product of its (nonzero) digits is 330750, while the sum is 43.

The square root of 505539772 is about 22484.2116161541. The cubic root of 505539772 is about 796.6210463500.

The spelling of 505539772 in words is "five hundred five million, five hundred thirty-nine thousand, seven hundred seventy-two".