625550414461 has 12 divisors (see below), whose sum is σ = 759319404192. Its totient is φ = 512873630808.

The previous prime is 625550414459. The next prime is 625550414479. The reversal of 625550414461 is 164414055526.

It is not a de Polignac number, because 625550414461 - 2¹ = 625550414459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625550414761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277527895 + ... + 277530148.

It is an arithmetic number, because the mean of its divisors is an integer number (63276617016).

Almost surely, 2^625550414461 is an apocalyptic number.

It is an amenable number.

625550414461 is a deficient number, since it is larger than the sum of its proper divisors (133768989731).

625550414461 is a wasteful number, since it uses less digits than its factorization.

625550414461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555058080 (or 555058073 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 43.

Adding to 625550414461 its reverse (164414055526), we get a palindrome (789964469987).

The spelling of 625550414461 in words is "six hundred twenty-five billion, five hundred fifty million, four hundred fourteen thousand, four hundred sixty-one".