505425473400 has 384 divisors, whose sum is σ = 1731493195200. Its totient is φ = 121385779200.

The previous prime is 505425473389. The next prime is 505425473431. The reversal of 505425473400 is 4374524505.

It is a super-2 number, since 2×505425473400² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 33417840 + ... + 33432960.

Almost surely, 2^505425473400 is an apocalyptic number.

505425473400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505425473400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (865746597600).

505425473400 is an abundant number, since it is smaller than the sum of its proper divisors (1226067721800).

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

505425473400 is a wasteful number, since it uses less digits than its factorization.

505425473400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15299 (or 15290 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 39.

Adding to 505425473400 its reverse (4374524505), we get a palindrome (509799997905).

The spelling of 505425473400 in words is "five hundred five billion, four hundred twenty-five million, four hundred seventy-three thousand, four hundred".