625401143 has 4 divisors (see below), whose sum is σ = 625716000. Its totient is φ = 625086288.

The previous prime is 625401109. The next prime is 625401149. The reversal of 625401143 is 341104526.

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 625401143 - 2¹⁰ = 625400119 is a prime.

It is a super-2 number, since 2×625401143² = 782253179331412898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625401149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154430 + ... + 158427.

It is an arithmetic number, because the mean of its divisors is an integer number (156429000).

Almost surely, 2^625401143 is an apocalyptic number.

625401143 is a deficient number, since it is larger than the sum of its proper divisors (314857).

625401143 is a wasteful number, since it uses less digits than its factorization.

625401143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314856.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 625401143 is about 25008.0215730873. The cubic root of 625401143 is about 855.1708528531.

Adding to 625401143 its reverse (341104526), we get a palindrome (966505669).

The spelling of 625401143 in words is "six hundred twenty-five million, four hundred one thousand, one hundred forty-three".