425721043 has 8 divisors (see below), whose sum is σ = 467382960. Its totient is φ = 384552480.

The previous prime is 425721031. The next prime is 425721067. The reversal of 425721043 is 340127524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425721043 - 2¹³ = 425712851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425721143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121528 + ... + 124981.

It is an arithmetic number, because the mean of its divisors is an integer number (58422870).

Almost surely, 2^425721043 is an apocalyptic number.

425721043 is a deficient number, since it is larger than the sum of its proper divisors (41661917).

425721043 is a wasteful number, since it uses less digits than its factorization.

425721043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246677.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 425721043 is about 20633.0085784890. The cubic root of 425721043 is about 752.2722455075.

Adding to 425721043 its reverse (340127524), we get a palindrome (765848567).

The spelling of 425721043 in words is "four hundred twenty-five million, seven hundred twenty-one thousand, forty-three".