54251215245 has 48 divisors (see below), whose sum is σ = 95129287344. Its totient is φ = 28598400000.

The previous prime is 54251215243. The next prime is 54251215279.

54251215245 is a `hidden beast` number, since 5 + 4 + 2 + 5 + 121 + 524 + 5 = 666.

54251215245 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 280026756 + 53971188489 = 16734^2 + 232317^2 .

It is not a de Polignac number, because 54251215245 - 2¹ = 54251215243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54251215241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2721615 + ... + 2741475.

It is an arithmetic number, because the mean of its divisors is an integer number (1981860153).

Almost surely, 2^54251215245 is an apocalyptic number.

It is an amenable number.

54251215245 is a deficient number, since it is larger than the sum of its proper divisors (40878072099).

54251215245 is a wasteful number, since it uses less digits than its factorization.

54251215245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20574 (or 20571 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The spelling of 54251215245 in words is "fifty-four billion, two hundred fifty-one million, two hundred fifteen thousand, two hundred forty-five".