55010401 has 4 divisors (see below), whose sum is σ = 55035412. Its totient is φ = 54985392.

The previous prime is 55010393. The next prime is 55010429. The reversal of 55010401 is 10401055.

It is a happy number.

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 27290176 + 27720225 = 5224^2 + 5265^2 .

It is a cyclic number.

It is not a de Polignac number, because 55010401 - 2³ = 55010393 is a prime.

It is a super-2 number, since 2×55010401² = 6052288436361602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55010701) 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, 8850 + ... + 13723.

It is an arithmetic number, because the mean of its divisors is an integer number (13758853).

Almost surely, 2^55010401 is an apocalyptic number.

It is an amenable number.

55010401 is a deficient number, since it is larger than the sum of its proper divisors (25011).

55010401 is a wasteful number, since it uses less digits than its factorization.

55010401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25010.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 55010401 is about 7416.8996892233. The cubic root of 55010401 is about 380.3192169946.

Adding to 55010401 its reverse (10401055), we get a palindrome (65411456).

The spelling of 55010401 in words is "fifty-five million, ten thousand, four hundred one".