403355425 has 12 divisors (see below), whose sum is σ = 545630256. Its totient is φ = 293349200.

The previous prime is 403355411. The next prime is 403355431. The reversal of 403355425 is 524553304.

It is a happy number.

It is not a de Polignac number, because 403355425 - 2⁷ = 403355297 is a prime.

It is a Duffinian 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, 733099 + ... + 733648.

It is an arithmetic number, because the mean of its divisors is an integer number (45469188).

Almost surely, 2^403355425 is an apocalyptic number.

It is an amenable number.

403355425 is a deficient number, since it is larger than the sum of its proper divisors (142274831).

403355425 is a wasteful number, since it uses less digits than its factorization.

403355425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466768 (or 1466763 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 403355425 is about 20083.7104390598. The cubic root of 403355425 is about 738.8608141501.

It can be divided in two parts, 403 and 355425, that multiplied together give a triangular number (143236275 = T₁₆₉₂₅).

The spelling of 403355425 in words is "four hundred three million, three hundred fifty-five thousand, four hundred twenty-five".