54145525515 has 16 divisors (see below), whose sum is σ = 87043428096. Its totient is φ = 28740751200.

The previous prime is 54145525501. The next prime is 54145525529. The reversal of 54145525515 is 51552554145.

It is a happy number.

54145525515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (54145525501) and next prime (54145525529).

It is not a de Polignac number, because 54145525515 - 2¹³ = 54145517323 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, 8550631 + ... + 8556960.

It is an arithmetic number, because the mean of its divisors is an integer number (5440214256).

Almost surely, 2^54145525515 is an apocalyptic number.

54145525515 is a deficient number, since it is larger than the sum of its proper divisors (32897902581).

54145525515 is a wasteful number, since it uses less digits than its factorization.

54145525515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17107810.

The product of its digits is 500000, while the sum is 42.

The spelling of 54145525515 in words is "fifty-four billion, one hundred forty-five million, five hundred twenty-five thousand, five hundred fifteen".