505253400 has 48 divisors (see below), whose sum is σ = 1566287400. Its totient is φ = 134734080.

The previous prime is 505253393. The next prime is 505253417. The reversal of 505253400 is 4352505.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420445 + ... + 421644.

Almost surely, 2^505253400 is an apocalyptic number.

505253400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505253400 is an abundant number, since it is smaller than the sum of its proper divisors (1061034000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505253400 is a wasteful number, since it uses less digits than its factorization.

505253400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842108 (or 842099 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 505253400 is about 22477.8424231508. The cubic root of 505253400 is about 796.4705978824.

The spelling of 505253400 in words is "five hundred five million, two hundred fifty-three thousand, four hundred".