55897739471 has 16 divisors (see below), whose sum is σ = 64478229504. Its totient is φ = 47467884384.

The previous prime is 55897739441. The next prime is 55897739479. The reversal of 55897739471 is 17493779855.

55897739471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55897739471 - 2¹⁴ = 55897723087 is a prime.

It is a super-3 number, since 3×55897739471³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55897739398 and 55897739407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55897739479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284426 + ... + 438968.

It is an arithmetic number, because the mean of its divisors is an integer number (4029889344).

Almost surely, 2^55897739471 is an apocalyptic number.

55897739471 is a deficient number, since it is larger than the sum of its proper divisors (8580490033).

55897739471 is a wasteful number, since it uses less digits than its factorization.

55897739471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155030.

The product of its digits is 66679200, while the sum is 65.

The spelling of 55897739471 in words is "fifty-five billion, eight hundred ninety-seven million, seven hundred thirty-nine thousand, four hundred seventy-one".