5551536401 has 2 divisors, whose sum is σ = 5551536402. Its totient is φ = 5551536400.

The previous prime is 5551536377. The next prime is 5551536437. The reversal of 5551536401 is 1046351555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4920321025 + 631215376 = 70145^2 + 25124^2 .

It is a cyclic number.

It is not a de Polignac number, because 5551536401 - 2¹⁰ = 5551535377 is a prime.

It is not a weakly prime, because it can be changed into another prime (5551536101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775768200 + 2775768201.

It is an arithmetic number, because the mean of its divisors is an integer number (2775768201).

Almost surely, 2^5551536401 is an apocalyptic number.

It is an amenable number.

5551536401 is a deficient number, since it is larger than the sum of its proper divisors (1).

5551536401 is an equidigital number, since it uses as much as digits as its factorization.

5551536401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 5551536401 is about 74508.6330635585. The cubic root of 5551536401 is about 1770.6704133654.

Adding to 5551536401 its reverse (1046351555), we get a palindrome (6597887956).

The spelling of 5551536401 in words is "five billion, five hundred fifty-one million, five hundred thirty-six thousand, four hundred one".