55140345415 has 4 divisors (see below), whose sum is σ = 66168414504. Its totient is φ = 44112276328.

The previous prime is 55140345371. The next prime is 55140345431. The reversal of 55140345415 is 51454304155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51454304155 = 5 ⋅10290860831.

It is a cyclic number.

It is not a de Polignac number, because 55140345415 - 2⁷ = 55140345287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5514034537 + ... + 5514034546.

It is an arithmetic number, because the mean of its divisors is an integer number (16542103626).

Almost surely, 2^55140345415 is an apocalyptic number.

55140345415 is a deficient number, since it is larger than the sum of its proper divisors (11028069089).

55140345415 is a wasteful number, since it uses less digits than its factorization.

55140345415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11028069088.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 55140345415 in words is "fifty-five billion, one hundred forty million, three hundred forty-five thousand, four hundred fifteen".