70425 has 18 divisors (see below), whose sum is σ = 126542. Its totient is φ = 37440.

The previous prime is 70423. The next prime is 70429. The reversal of 70425 is 52407.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 729 + 69696 = 27^2 + 264^2 .

It is not a de Polignac number, because 70425 - 2¹ = 70423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70398 and 70407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 69 + ... + 381.

2⁷⁰⁴²⁵ is an apocalyptic number.

70425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70425 is a deficient number, since it is larger than the sum of its proper divisors (56117).

70425 is a wasteful number, since it uses less digits than its factorization.

70425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 70425 is about 265.3770901943. The cubic root of 70425 is about 41.2960917297.

Subtracting from 70425 its sum of digits (18), we obtain a palindrome (70407).

It can be divided in two parts, 704 and 25, that added together give a 6-th power (729 = 3⁶).

The spelling of 70425 in words is "seventy thousand, four hundred twenty-five".