55452415 has 4 divisors (see below), whose sum is σ = 66542904. Its totient is φ = 44361928.

The previous prime is 55452409. The next prime is 55452421. The reversal of 55452415 is 51425455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51425455 = 5 ⋅10285091.

It is an interprime number because it is at equal distance from previous prime (55452409) and next prime (55452421).

It is a cyclic number.

It is not a de Polignac number, because 55452415 - 2¹⁹ = 54928127 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5545237 + ... + 5545246.

It is an arithmetic number, because the mean of its divisors is an integer number (16635726).

Almost surely, 2^55452415 is an apocalyptic number.

55452415 is a deficient number, since it is larger than the sum of its proper divisors (11090489).

55452415 is a wasteful number, since it uses less digits than its factorization.

55452415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11090488.

The product of its digits is 20000, while the sum is 31.

The square root of 55452415 is about 7446.6378319346. The cubic root of 55452415 is about 381.3351349784.

The spelling of 55452415 in words is "fifty-five million, four hundred fifty-two thousand, four hundred fifteen".