55450572461 has 4 divisors (see below), whose sum is σ = 55576884000. Its totient is φ = 55324260924.

The previous prime is 55450572427. The next prime is 55450572479. The reversal of 55450572461 is 16427505455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55450572461 - 2¹⁸ = 55450310317 is a prime.

It is a super-2 number, since 2×55450572461² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55450572481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63155111 + ... + 63155988.

It is an arithmetic number, because the mean of its divisors is an integer number (13894221000).

Almost surely, 2^55450572461 is an apocalyptic number.

It is an amenable number.

55450572461 is a deficient number, since it is larger than the sum of its proper divisors (126311539).

55450572461 is a wasteful number, since it uses less digits than its factorization.

55450572461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126311538.

The product of its (nonzero) digits is 840000, while the sum is 44.

The spelling of 55450572461 in words is "fifty-five billion, four hundred fifty million, five hundred seventy-two thousand, four hundred sixty-one".