625913066 has 4 divisors (see below), whose sum is σ = 938869602. Its totient is φ = 312956532.

The previous prime is 625913051. The next prime is 625913111. The reversal of 625913066 is 660319526.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660319526 = 2 ⋅330159763.

It can be written as a sum of positive squares in only one way, i.e., 553237441 + 72675625 = 23521^2 + 8525^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156478265 + ... + 156478268.

Almost surely, 2^625913066 is an apocalyptic number.

625913066 is a deficient number, since it is larger than the sum of its proper divisors (312956536).

625913066 is a wasteful number, since it uses less digits than its factorization.

625913066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312956535.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 625913066 is about 25018.2546553512. The cubic root of 625913066 is about 855.4041229917.

The spelling of 625913066 in words is "six hundred twenty-five million, nine hundred thirteen thousand, sixty-six".