625434047 has 4 divisors (see below), whose sum is σ = 714781776. Its totient is φ = 536086320.

The previous prime is 625434041. The next prime is 625434059. The reversal of 625434047 is 740434526.

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

It is not a de Polignac number, because 625434047 - 2⁴ = 625434031 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 625433998 and 625434016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625434041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44673854 + ... + 44673867.

It is an arithmetic number, because the mean of its divisors is an integer number (178695444).

Almost surely, 2^625434047 is an apocalyptic number.

625434047 is a deficient number, since it is larger than the sum of its proper divisors (89347729).

625434047 is an equidigital number, since it uses as much as digits as its factorization.

625434047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89347728.

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 625434047 is about 25008.6794333487. The cubic root of 625434047 is about 855.1858501865.

The spelling of 625434047 in words is "six hundred twenty-five million, four hundred thirty-four thousand, forty-seven".