625050001 has 9 divisors (see below), whose sum is σ = 654009321. Its totient is φ = 597323892.

The previous prime is 625049987. The next prime is 625050029. The reversal of 625050001 is 100050526.

It is a happy number.

The square root of 625050001 is 25001.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 625050001 - 2²⁷ = 490832273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625050031) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 574480 + ... + 575566.

Almost surely, 2^625050001 is an apocalyptic number.

625050001 is the 25001-st square number.

625050001 is the 12501-st centered octagonal number.

It is an amenable number.

625050001 is a deficient number, since it is larger than the sum of its proper divisors (28959320).

625050001 is an frugal number, since it uses more digits than its factorization.

625050001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220 (or 1110 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The cubic root of 625050001 is about 855.0107728656.

The spelling of 625050001 in words is "six hundred twenty-five million, fifty thousand, one".