501125400 has 96 divisors (see below), whose sum is σ = 1726117200. Its totient is φ = 133632000.

The previous prime is 501125369. The next prime is 501125453. The reversal of 501125400 is 4521105.

501125400 is a `hidden beast` number, since 501 + 125 + 40 + 0 = 666.

It is a super-2 number, since 2×501125400² = 502253333050320000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41001 + ... + 51800.

Almost surely, 2^501125400 is an apocalyptic number.

501125400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

501125400 is an abundant number, since it is smaller than the sum of its proper divisors (1224991800).

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

501125400 is a wasteful number, since it uses less digits than its factorization.

501125400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92826 (or 92811 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 501125400 is about 22385.8303397484. The cubic root of 501125400 is about 794.2955668158.

Adding to 501125400 its reverse (4521105), we get a palindrome (505646505).

The spelling of 501125400 in words is "five hundred one million, one hundred twenty-five thousand, four hundred".