505040241400 has 24 divisors (see below), whose sum is σ = 1174218561720. Its totient is φ = 202016096480.

The previous prime is 505040241367. The next prime is 505040241401. The reversal of 505040241400 is 4142040505.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505040241401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1262600404 + ... + 1262600803.

It is an arithmetic number, because the mean of its divisors is an integer number (48925773405).

Almost surely, 2^505040241400 is an apocalyptic number.

505040241400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505040241400 is an abundant number, since it is smaller than the sum of its proper divisors (669178320320).

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

505040241400 is a wasteful number, since it uses less digits than its factorization.

505040241400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525201223 (or 2525201214 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 505040241400 its reverse (4142040505), we get a palindrome (509182281905).

The spelling of 505040241400 in words is "five hundred five billion, forty million, two hundred forty-one thousand, four hundred".