30641425 has 6 divisors (see below), whose sum is σ = 37995398. Its totient is φ = 24513120.

The previous prime is 30641407. The next prime is 30641437. The reversal of 30641425 is 52414603.

It can be written as a sum of positive squares in 3 ways, for example, as 8059921 + 22581504 = 2839^2 + 4752^2 .

It is not a de Polignac number, because 30641425 - 2⁷ = 30641297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 1225657 = 30641425 / (3 + 0 + 6 + 4 + 1 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30641425.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 612804 + ... + 612853.

Almost surely, 2^30641425 is an apocalyptic number.

It is an amenable number.

30641425 is a deficient number, since it is larger than the sum of its proper divisors (7353973).

30641425 is a wasteful number, since it uses less digits than its factorization.

30641425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225667 (or 1225662 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 30641425 is about 5535.4697180998. The cubic root of 30641425 is about 312.9221601086.

It can be divided in two parts, 3064 and 1425, that added together give a square (4489 = 67²).

The spelling of 30641425 in words is "thirty million, six hundred forty-one thousand, four hundred twenty-five".