625520101 has 4 divisors (see below), whose sum is σ = 627049900. Its totient is φ = 623990304.

The previous prime is 625520099. The next prime is 625520123. The reversal of 625520101 is 101025526.

625520101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 474107076 + 151413025 = 21774^2 + 12305^2 .

It is a cyclic number.

It is not a de Polignac number, because 625520101 - 2¹ = 625520099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625520501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764286 + ... + 765103.

It is an arithmetic number, because the mean of its divisors is an integer number (156762475).

Almost surely, 2^625520101 is an apocalyptic number.

It is an amenable number.

625520101 is a deficient number, since it is larger than the sum of its proper divisors (1529799).

625520101 is a wasteful number, since it uses less digits than its factorization.

625520101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529798.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 625520101 is about 25010.3998568595. The cubic root of 625520101 is about 855.2250703028.

Adding to 625520101 its reverse (101025526), we get a palindrome (726545627).

The spelling of 625520101 in words is "six hundred twenty-five million, five hundred twenty thousand, one hundred one".