1055254421 has 12 divisors (see below), whose sum is σ = 1192357728. Its totient is φ = 931726224.

The previous prime is 1055254391. The next prime is 1055254441. The reversal of 1055254421 is 1244525501.

It is a de Polignac number, because none of the positive numbers 2^k-1055254421 is a prime.

It is a super-3 number, since 3×1055254421³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055254441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131855 + ... + 139628.

It is an arithmetic number, because the mean of its divisors is an integer number (99363144).

Almost surely, 2^1055254421 is an apocalyptic number.

It is an amenable number.

1055254421 is a deficient number, since it is larger than the sum of its proper divisors (137103307).

1055254421 is a wasteful number, since it uses less digits than its factorization.

1055254421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271532 (or 271519 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 1055254421 is about 32484.6797890944. The cubic root of 1055254421 is about 1018.0889570031.

Adding to 1055254421 its reverse (1244525501), we get a palindrome (2299779922).

The spelling of 1055254421 in words is "one billion, fifty-five million, two hundred fifty-four thousand, four hundred twenty-one".