406125503 has 16 divisors (see below), whose sum is σ = 469862400. Its totient is φ = 343840896.

The previous prime is 406125479. The next prime is 406125539. The reversal of 406125503 is 305521604.

It is not a de Polignac number, because 406125503 - 2¹⁰ = 406124479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406185503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289598 + ... + 290996.

It is an arithmetic number, because the mean of its divisors is an integer number (29366400).

Almost surely, 2^406125503 is an apocalyptic number.

406125503 is a deficient number, since it is larger than the sum of its proper divisors (63736897).

406125503 is a wasteful number, since it uses less digits than its factorization.

406125503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 406125503 is about 20152.5557436272. Note that the first 3 decimals coincide. The cubic root of 406125503 is about 740.5483536034.

The spelling of 406125503 in words is "four hundred six million, one hundred twenty-five thousand, five hundred three".