625277256745 has 4 divisors (see below), whose sum is σ = 750332708100. Its totient is φ = 500221805392.

The previous prime is 625277256707. The next prime is 625277256767. The reversal of 625277256745 is 547652772526.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 376471826329 + 248805430416 = 613573^2 + 498804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625277256745 is a prime.

It is a super-3 number, since 3×625277256745³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 625277256745.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62527725670 + ... + 62527725679.

It is an arithmetic number, because the mean of its divisors is an integer number (187583177025).

Almost surely, 2^625277256745 is an apocalyptic number.

It is an amenable number.

625277256745 is a deficient number, since it is larger than the sum of its proper divisors (125055451355).

625277256745 is a wasteful number, since it uses less digits than its factorization.

625277256745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125055451354.

The product of its digits is 49392000, while the sum is 58.

The spelling of 625277256745 in words is "six hundred twenty-five billion, two hundred seventy-seven million, two hundred fifty-six thousand, seven hundred forty-five".