55452145205515 has 16 divisors (see below), whose sum is σ = 70062243897600. Its totient is φ = 42016431657312.

The previous prime is 55452145205461. The next prime is 55452145205539. The reversal of 55452145205515 is 51550254125455.

It is a cyclic number.

It is not a de Polignac number, because 55452145205515 - 2¹¹ = 55452145203467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72236607 + ... + 73000216.

It is an arithmetic number, because the mean of its divisors is an integer number (4378890243600).

Almost surely, 2^{55452145205515} is an apocalyptic number.

55452145205515 is a deficient number, since it is larger than the sum of its proper divisors (14610098692085).

55452145205515 is a wasteful number, since it uses less digits than its factorization.

55452145205515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145240866.

The product of its (nonzero) digits is 5000000, while the sum is 49.

The spelling of 55452145205515 in words is "fifty-five trillion, four hundred fifty-two billion, one hundred forty-five million, two hundred five thousand, five hundred fifteen".