55023401 has 2 divisors, whose sum is σ = 55023402. Its totient is φ = 55023400.

The previous prime is 55023391. The next prime is 55023427. The reversal of 55023401 is 10432055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43626025 + 11397376 = 6605^2 + 3376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55023401 is a prime.

It is not a weakly prime, because it can be changed into another prime (55023431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27511700 + 27511701.

It is an arithmetic number, because the mean of its divisors is an integer number (27511701).

Almost surely, 2^55023401 is an apocalyptic number.

It is an amenable number.

55023401 is a deficient number, since it is larger than the sum of its proper divisors (1).

55023401 is an equidigital number, since it uses as much as digits as its factorization.

55023401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 55023401 is about 7417.7760144129. The cubic root of 55023401 is about 380.3491735138.

Adding to 55023401 its reverse (10432055), we get a palindrome (65455456).

The spelling of 55023401 in words is "fifty-five million, twenty-three thousand, four hundred one".