54951215 has 16 divisors (see below), whose sum is σ = 72852480. Its totient is φ = 39455520.

The previous prime is 54951203. The next prime is 54951223. The reversal of 54951215 is 51215945.

It is not a de Polignac number, because 54951215 - 2²² = 50756911 is a prime.

It is a congruent number.

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, 1979 + ... + 10668.

It is an arithmetic number, because the mean of its divisors is an integer number (4553280).

Almost surely, 2^54951215 is an apocalyptic number.

54951215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

54951215 is a deficient number, since it is larger than the sum of its proper divisors (17901265).

54951215 is a wasteful number, since it uses less digits than its factorization.

54951215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12742.

The product of its digits is 9000, while the sum is 32.

The square root of 54951215 is about 7412.9086733886. The cubic root of 54951215 is about 380.1827721870.

The spelling of 54951215 in words is "fifty-four million, nine hundred fifty-one thousand, two hundred fifteen".