54150515 has 4 divisors (see below), whose sum is σ = 64980624. Its totient is φ = 43320408.

The previous prime is 54150461. The next prime is 54150517. The reversal of 54150515 is 51505145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51505145 = 5 ⋅10301029.

It is a cyclic number.

It is not a de Polignac number, because 54150515 - 2¹⁸ = 53888371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54150517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5415047 + ... + 5415056.

It is an arithmetic number, because the mean of its divisors is an integer number (16245156).

Almost surely, 2^54150515 is an apocalyptic number.

54150515 is a deficient number, since it is larger than the sum of its proper divisors (10830109).

54150515 is a wasteful number, since it uses less digits than its factorization.

54150515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10830108.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 54150515 is about 7358.7033504552. The cubic root of 54150515 is about 378.3271688508.

The spelling of 54150515 in words is "fifty-four million, one hundred fifty thousand, five hundred fifteen".