625510673 has 4 divisors (see below), whose sum is σ = 625985508. Its totient is φ = 625035840.

The previous prime is 625510661. The next prime is 625510693. The reversal of 625510673 is 376015526.

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

It can be written as a sum of positive squares in 2 ways, for example, as 610238209 + 15272464 = 24703^2 + 3908^2 .

It is a cyclic number.

It is not a de Polignac number, because 625510673 - 2¹² = 625506577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625510643) 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, 235436 + ... + 238077.

It is an arithmetic number, because the mean of its divisors is an integer number (156496377).

Almost surely, 2^625510673 is an apocalyptic number.

It is an amenable number.

625510673 is a deficient number, since it is larger than the sum of its proper divisors (474835).

625510673 is a wasteful number, since it uses less digits than its factorization.

625510673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474834.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 625510673 is about 25010.2113745566. The cubic root of 625510673 is about 855.2207735571.

The spelling of 625510673 in words is "six hundred twenty-five million, five hundred ten thousand, six hundred seventy-three".