421041053 has 4 divisors (see below), whose sum is σ = 435559740. Its totient is φ = 406522368.

The previous prime is 421041043. The next prime is 421041107. The reversal of 421041053 is 350140124.

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

It can be written as a sum of positive squares in 2 ways, for example, as 88416409 + 332624644 = 9403^2 + 18238^2 .

It is a cyclic number.

It is not a de Polignac number, because 421041053 - 2⁴ = 421041037 is a prime.

It is a super-2 number, since 2×421041053² = 354551136622697618, 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 (421041043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7259300 + ... + 7259357.

It is an arithmetic number, because the mean of its divisors is an integer number (108889935).

Almost surely, 2^421041053 is an apocalyptic number.

It is an amenable number.

421041053 is a deficient number, since it is larger than the sum of its proper divisors (14518687).

421041053 is a wasteful number, since it uses less digits than its factorization.

421041053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14518686.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 421041053 is about 20519.2849046939. The cubic root of 421041053 is about 749.5054831944.

Adding to 421041053 its reverse (350140124), we get a palindrome (771181177).

The spelling of 421041053 in words is "four hundred twenty-one million, forty-one thousand, fifty-three".