55155415 has 8 divisors (see below), whose sum is σ = 75641760. Its totient is φ = 37820832.

The previous prime is 55155391. The next prime is 55155433. The reversal of 55155415 is 51455155.

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

It is not a de Polignac number, because 55155415 - 2⁹ = 55154903 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787900 + ... + 787969.

It is an arithmetic number, because the mean of its divisors is an integer number (9455220).

Almost surely, 2^55155415 is an apocalyptic number.

55155415 is a deficient number, since it is larger than the sum of its proper divisors (20486345).

55155415 is a wasteful number, since it uses less digits than its factorization.

55155415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575881.

The product of its digits is 12500, while the sum is 31.

The square root of 55155415 is about 7426.6691726507. The cubic root of 55155415 is about 380.6531127591.

The spelling of 55155415 in words is "fifty-five million, one hundred fifty-five thousand, four hundred fifteen".