625402 has 4 divisors (see below), whose sum is σ = 938106. Its totient is φ = 312700.

The previous prime is 625397. The next prime is 625409. The reversal of 625402 is 204526.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 423801 + 201601 = 651^2 + 449^2 .

It is a super-2 number, since 2×625402² = 782255323208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 625402.

It is not an unprimeable number, because it can be changed into a prime (625409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156349 + ... + 156352.

2⁶²⁵⁴⁰² is an apocalyptic number.

625402 is a deficient number, since it is larger than the sum of its proper divisors (312704).

625402 is a wasteful number, since it uses less digits than its factorization.

625402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312703.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 625402 is about 790.8236212962. The cubic root of 625402 is about 85.5171243472.

Adding to 625402 its reverse (204526), we get a palindrome (829928).

The spelling of 625402 in words is "six hundred twenty-five thousand, four hundred two".