625250461551 has 32 divisors (see below), whose sum is σ = 903344682240. Its totient is φ = 383334280704.

The previous prime is 625250461541. The next prime is 625250461573. The reversal of 625250461551 is 155164052526.

It is not a de Polignac number, because 625250461551 - 2⁹ = 625250461039 is a prime.

It is a super-3 number, since 3×625250461551³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625250461541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 570856 + ... + 1255538.

It is an arithmetic number, because the mean of its divisors is an integer number (28229521320).

Almost surely, 2^625250461551 is an apocalyptic number.

625250461551 is a deficient number, since it is larger than the sum of its proper divisors (278094220689).

625250461551 is a wasteful number, since it uses less digits than its factorization.

625250461551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685175.

The product of its (nonzero) digits is 360000, while the sum is 42.

It can be divided in two parts, 625250 and 461551, that added together give a palindrome (1086801).

The spelling of 625250461551 in words is "six hundred twenty-five billion, two hundred fifty million, four hundred sixty-one thousand, five hundred fifty-one".