625777061 has 16 divisors (see below), whose sum is σ = 770872704. Its totient is φ = 494679744.

The previous prime is 625777043. The next prime is 625777063. The reversal of 625777061 is 160777526.

It is not a de Polignac number, because 625777061 - 2⁶ = 625776997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625777063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132635 + ... + 137271.

It is an arithmetic number, because the mean of its divisors is an integer number (48179544).

Almost surely, 2^625777061 is an apocalyptic number.

It is an amenable number.

625777061 is a deficient number, since it is larger than the sum of its proper divisors (145095643).

625777061 is a wasteful number, since it uses less digits than its factorization.

625777061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6140.

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 625777061 is about 25015.5363924102. The cubic root of 625777061 is about 855.3421614236.

The spelling of 625777061 in words is "six hundred twenty-five million, seven hundred seventy-seven thousand, sixty-one".