625880849 has 6 divisors (see below), whose sum is σ = 687951810. Its totient is φ = 568982480.

The previous prime is 625880821. The next prime is 625880861. The reversal of 625880849 is 948088526.

It can be written as a sum of positive squares in only one way, i.e., 455395600 + 170485249 = 21340^2 + 13057^2 .

It is not a de Polignac number, because 625880849 - 2¹⁶ = 625815313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 625880797 and 625880806.

It is not an unprimeable number, because it can be changed into a prime (625880809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2586164 + ... + 2586405.

It is an arithmetic number, because the mean of its divisors is an integer number (114658635).

Almost surely, 2^625880849 is an apocalyptic number.

It is an amenable number.

625880849 is a deficient number, since it is larger than the sum of its proper divisors (62070961).

625880849 is a wasteful number, since it uses less digits than its factorization.

625880849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5172591 (or 5172580 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The square root of 625880849 is about 25017.6107772105. The cubic root of 625880849 is about 855.3894462850.

The spelling of 625880849 in words is "six hundred twenty-five million, eight hundred eighty thousand, eight hundred forty-nine".