625071381 has 16 divisors (see below), whose sum is σ = 909895680. Its totient is φ = 378539120.

The previous prime is 625071379. The next prime is 625071389. The reversal of 625071381 is 183170526.

It is a cyclic number.

It is not a de Polignac number, because 625071381 - 2¹ = 625071379 is a prime.

It is a super-2 number, since 2×625071381² = 781428462690494322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625071389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40906 + ... + 54068.

It is an arithmetic number, because the mean of its divisors is an integer number (56868480).

Almost surely, 2^625071381 is an apocalyptic number.

It is an amenable number.

625071381 is a deficient number, since it is larger than the sum of its proper divisors (284824299).

625071381 is a wasteful number, since it uses less digits than its factorization.

625071381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14616.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 625071381 is about 25001.4275792404. The cubic root of 625071381 is about 855.0205213774.

The spelling of 625071381 in words is "six hundred twenty-five million, seventy-one thousand, three hundred eighty-one".