625915 has 4 divisors (see below), whose sum is σ = 751104. Its totient is φ = 500728.

The previous prime is 625913. The next prime is 625927. The reversal of 625915 is 519526.

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

It is a cyclic number.

It is not a de Polignac number, because 625915 - 2¹ = 625913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62587 + ... + 62596.

It is an arithmetic number, because the mean of its divisors is an integer number (187776).

2⁶²⁵⁹¹⁵ is an apocalyptic number.

625915 is a deficient number, since it is larger than the sum of its proper divisors (125189).

625915 is a wasteful number, since it uses less digits than its factorization.

625915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125188.

The product of its digits is 2700, while the sum is 28.

The square root of 625915 is about 791.1479002058. The cubic root of 625915 is about 85.5405004025.

It can be divided in two parts, 625 and 915, that added together give a triangular number (1540 = T₅₅).

The spelling of 625915 in words is "six hundred twenty-five thousand, nine hundred fifteen".