84258425 has 24 divisors (see below), whose sum is σ = 107001336. Its totient is φ = 65802240.

The previous prime is 84258401. The next prime is 84258437. The reversal of 84258425 is 52485248.

It can be written as a sum of positive squares in 12 ways, for example, as 25030009 + 59228416 = 5003^2 + 7696^2 .

It is not a de Polignac number, because 84258425 - 2¹⁸ = 83996281 is a prime.

It is a Duffinian 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, 249857 + ... + 250193.

It is an arithmetic number, because the mean of its divisors is an integer number (4458389).

Almost surely, 2^84258425 is an apocalyptic number.

It is an amenable number.

84258425 is a deficient number, since it is larger than the sum of its proper divisors (22742911).

84258425 is a wasteful number, since it uses less digits than its factorization.

84258425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 552 counting only the distinct ones).

The product of its digits is 102400, while the sum is 38.

The square root of 84258425 is about 9179.2388028638. The cubic root of 84258425 is about 438.4005721556.

The spelling of 84258425 in words is "eighty-four million, two hundred fifty-eight thousand, four hundred twenty-five".