55875891709 has 24 divisors (see below), whose sum is σ = 61850234880. Its totient is φ = 50438979360.

The previous prime is 55875891679. The next prime is 55875891739. The reversal of 55875891709 is 90719857855.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55875891679) and next prime (55875891739).

It is not a de Polignac number, because 55875891709 - 2¹³ = 55875883517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55875891739) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26772264 + ... + 26774350.

It is an arithmetic number, because the mean of its divisors is an integer number (2577093120).

Almost surely, 2^55875891709 is an apocalyptic number.

It is an amenable number.

55875891709 is a deficient number, since it is larger than the sum of its proper divisors (5974343171).

55875891709 is a wasteful number, since it uses less digits than its factorization.

55875891709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561 (or 3550 counting only the distinct ones).

The product of its (nonzero) digits is 31752000, while the sum is 64.

The spelling of 55875891709 in words is "fifty-five billion, eight hundred seventy-five million, eight hundred ninety-one thousand, seven hundred nine".