55254515 has 4 divisors (see below), whose sum is σ = 66305424. Its totient is φ = 44203608.

The previous prime is 55254491. The next prime is 55254517. The reversal of 55254515 is 51545255.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55254515 - 2¹⁶ = 55188979 is a prime.

It is a super-2 number, since 2×55254515² = 6106122855770450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55254517) 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, 5525447 + ... + 5525456.

It is an arithmetic number, because the mean of its divisors is an integer number (16576356).

Almost surely, 2^55254515 is an apocalyptic number.

55254515 is a deficient number, since it is larger than the sum of its proper divisors (11050909).

55254515 is a wasteful number, since it uses less digits than its factorization.

55254515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11050908.

The product of its digits is 25000, while the sum is 32.

The square root of 55254515 is about 7433.3380792212. The cubic root of 55254515 is about 380.8809547177.

The spelling of 55254515 in words is "fifty-five million, two hundred fifty-four thousand, five hundred fifteen".