55402415 has 8 divisors (see below), whose sum is σ = 66832128. Its totient is φ = 44089120.

The previous prime is 55402409. The next prime is 55402429. The reversal of 55402415 is 51420455.

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

It is not a de Polignac number, because 55402415 - 2⁸ = 55402159 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 28052 + ... + 29961.

It is an arithmetic number, because the mean of its divisors is an integer number (8354016).

Almost surely, 2^55402415 is an apocalyptic number.

55402415 is a deficient number, since it is larger than the sum of its proper divisors (11429713).

55402415 is a wasteful number, since it uses less digits than its factorization.

55402415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58209.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 55402415 is about 7443.2798550102. The cubic root of 55402415 is about 381.2204871896.

The spelling of 55402415 in words is "fifty-five million, four hundred two thousand, four hundred fifteen".