55154052801 has 9 divisors (see below), whose sum is σ = 79667982849. Its totient is φ = 36768898836.

The previous prime is 55154052787. The next prime is 55154052827. The reversal of 55154052801 is 10825045155.

The square root of 55154052801 is 234849.

It is a perfect power (a square), and thus also a powerful number.

55154052801 is a `hidden beast` number, since 551 + 54 + 0 + 52 + 8 + 0 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 55154052801 - 2⁵ = 55154052769 is a prime.

It is a super-3 number, since 3×55154052801³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (55154052881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 665406 + ... + 743688.

Almost surely, 2^55154052801 is an apocalyptic number.

55154052801 is the 234849-th square number.

55154052801 is the 117425-th centered octagonal number.

It is an amenable number.

55154052801 is a deficient number, since it is larger than the sum of its proper divisors (24513930048).

55154052801 is an frugal number, since it uses more digits than its factorization.

55154052801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156572 (or 78286 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 36.

Multiplying 55154052801 by its sum of digits (36), we get a square (1985545900836 = 1409094²).

Adding to 55154052801 its reverse (10825045155), we get a palindrome (65979097956).

The spelling of 55154052801 in words is "fifty-five billion, one hundred fifty-four million, fifty-two thousand, eight hundred one".