625812241 has 4 divisors (see below), whose sum is σ = 631888192. Its totient is φ = 619736292.

The previous prime is 625812203. The next prime is 625812251. The reversal of 625812241 is 142218526.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142218526 = 2 ⋅71109263.

It is a cyclic number.

It is not a de Polignac number, because 625812241 - 2⁹ = 625811729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625812251) 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, 3037821 + ... + 3038026.

It is an arithmetic number, because the mean of its divisors is an integer number (157972048).

Almost surely, 2^625812241 is an apocalyptic number.

It is an amenable number.

625812241 is a deficient number, since it is larger than the sum of its proper divisors (6075951).

625812241 is a wasteful number, since it uses less digits than its factorization.

625812241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6075950.

The product of its digits is 7680, while the sum is 31.

The square root of 625812241 is about 25016.2395455432. The cubic root of 625812241 is about 855.3581896948.

The spelling of 625812241 in words is "six hundred twenty-five million, eight hundred twelve thousand, two hundred forty-one".