7421056403 has 4 divisors (see below), whose sum is σ = 7546837080. Its totient is φ = 7295275728.

The previous prime is 7421056387. The next prime is 7421056429. The reversal of 7421056403 is 3046501247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3046501247 = 10463 ⋅291169.

It is a cyclic number.

It is not a de Polignac number, because 7421056403 - 2⁴ = 7421056387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7421056403.

It is not an unprimeable number, because it can be changed into a prime (7421056453) 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, 62890250 + ... + 62890367.

It is an arithmetic number, because the mean of its divisors is an integer number (1886709270).

Almost surely, 2^7421056403 is an apocalyptic number.

7421056403 is a deficient number, since it is larger than the sum of its proper divisors (125780677).

7421056403 is a wasteful number, since it uses less digits than its factorization.

7421056403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125780676.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 7421056403 is about 86145.5535880988. The cubic root of 7421056403 is about 1950.5417213314.

The spelling of 7421056403 in words is "seven billion, four hundred twenty-one million, fifty-six thousand, four hundred three".