10420551 has 6 divisors (see below), whose sum is σ = 15051920. Its totient is φ = 6947028.

The previous prime is 10420549. The next prime is 10420559. The reversal of 10420551 is 15502401.

10420551 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10420551 - 2¹ = 10420549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10420559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 578911 + ... + 578928.

Almost surely, 2^10420551 is an apocalyptic number.

10420551 is a deficient number, since it is larger than the sum of its proper divisors (4631369).

10420551 is a wasteful number, since it uses less digits than its factorization.

10420551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157845 (or 1157842 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 10420551 is about 3228.0878240841. The cubic root of 10420551 is about 218.4222590323.

Adding to 10420551 its reverse (15502401), we get a palindrome (25922952).

The spelling of 10420551 in words is "ten million, four hundred twenty thousand, five hundred fifty-one".