283521425 has 12 divisors (see below), whose sum is σ = 383527536. Its totient is φ = 206197200.

The previous prime is 283521419. The next prime is 283521449. The reversal of 283521425 is 524125382.

It is not a de Polignac number, because 283521425 - 2⁴ = 283521409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 283521391 and 283521400.

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, 515219 + ... + 515768.

It is an arithmetic number, because the mean of its divisors is an integer number (31960628).

Almost surely, 2^283521425 is an apocalyptic number.

283521425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

283521425 is a deficient number, since it is larger than the sum of its proper divisors (100006111).

283521425 is a wasteful number, since it uses less digits than its factorization.

283521425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031008 (or 1031003 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 283521425 is about 16838.0944586969. The cubic root of 283521425 is about 656.9444192784.

The spelling of 283521425 in words is "two hundred eighty-three million, five hundred twenty-one thousand, four hundred twenty-five".