428525253 has 12 divisors (see below), whose sum is σ = 666595020. Its totient is φ = 263707776.

The previous prime is 428525249. The next prime is 428525269. The reversal of 428525253 is 352525824.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 139287204 + 289238049 = 11802^2 + 17007^2 .

It is not a de Polignac number, because 428525253 - 2² = 428525249 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428525203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1831188 + ... + 1831421.

It is an arithmetic number, because the mean of its divisors is an integer number (55549585).

Almost surely, 2^428525253 is an apocalyptic number.

It is an amenable number.

428525253 is a deficient number, since it is larger than the sum of its proper divisors (238069767).

428525253 is a wasteful number, since it uses less digits than its factorization.

428525253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3662628 (or 3662625 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 428525253 is about 20700.8515042256. The cubic root of 428525253 is about 753.9203626369.

The spelling of 428525253 in words is "four hundred twenty-eight million, five hundred twenty-five thousand, two hundred fifty-three".