54451615 has 8 divisors (see below), whose sum is σ = 66732480. Its totient is φ = 42634272.

The previous prime is 54451613. The next prime is 54451633. The reversal of 54451615 is 51615445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54451615 - 2¹ = 54451613 is a prime.

It is a super-2 number, since 2×54451615² = 5929956752216450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54451613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115620 + ... + 116089.

It is an arithmetic number, because the mean of its divisors is an integer number (8341560).

Almost surely, 2^54451615 is an apocalyptic number.

54451615 is a deficient number, since it is larger than the sum of its proper divisors (12280865).

54451615 is a wasteful number, since it uses less digits than its factorization.

54451615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231761.

The product of its digits is 12000, while the sum is 31.

The square root of 54451615 is about 7379.1337567495. The cubic root of 54451615 is about 379.0270933911.

The spelling of 54451615 in words is "fifty-four million, four hundred fifty-one thousand, six hundred fifteen".