1063554421 has 2 divisors, whose sum is σ = 1063554422. Its totient is φ = 1063554420.

The previous prime is 1063554407. The next prime is 1063554509. The reversal of 1063554421 is 1244553601.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 869955025 + 193599396 = 29495^2 + 13914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1063554421 - 2¹³ = 1063546229 is a prime.

It is a super-2 number, since 2×1063554421² = 2262296012857290482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1063554521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531777210 + 531777211.

It is an arithmetic number, because the mean of its divisors is an integer number (531777211).

Almost surely, 2^1063554421 is an apocalyptic number.

It is an amenable number.

1063554421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1063554421 is an equidigital number, since it uses as much as digits as its factorization.

1063554421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1063554421 is about 32612.1820950393. The cubic root of 1063554421 is about 1020.7512154756.

It can be divided in two parts, 10635 and 54421, that added together give a palindrome (65056).

The spelling of 1063554421 in words is "one billion, sixty-three million, five hundred fifty-four thousand, four hundred twenty-one".