625421411 has 4 divisors (see below), whose sum is σ = 625527000. Its totient is φ = 625315824.

The previous prime is 625421393. The next prime is 625421413. The reversal of 625421411 is 114124526.

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

It is a cyclic number.

It is not a de Polignac number, because 625421411 - 2¹⁰ = 625420387 is a prime.

It is a super-3 number, since 3×625421411³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625421413) 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, 43346 + ... + 55943.

It is an arithmetic number, because the mean of its divisors is an integer number (156381750).

Almost surely, 2^625421411 is an apocalyptic number.

625421411 is a deficient number, since it is larger than the sum of its proper divisors (105589).

625421411 is an equidigital number, since it uses as much as digits as its factorization.

625421411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105588.

The product of its digits is 1920, while the sum is 26.

The square root of 625421411 is about 25008.4267997809. The cubic root of 625421411 is about 855.1800908789.

Adding to 625421411 its reverse (114124526), we get a palindrome (739545937).

The spelling of 625421411 in words is "six hundred twenty-five million, four hundred twenty-one thousand, four hundred eleven".