55487294 has 8 divisors (see below), whose sum is σ = 83967840. Its totient is φ = 27498016.

The previous prime is 55487291. The next prime is 55487297. The reversal of 55487294 is 49278455.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55487291) and next prime (55487297).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55487291) 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, 122534 + ... + 122985.

It is an arithmetic number, because the mean of its divisors is an integer number (10495980).

Almost surely, 2^55487294 is an apocalyptic number.

55487294 is a deficient number, since it is larger than the sum of its proper divisors (28480546).

55487294 is a wasteful number, since it uses less digits than its factorization.

55487294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245634.

The product of its digits is 403200, while the sum is 44.

The square root of 55487294 is about 7448.9793931786. The cubic root of 55487294 is about 381.4150701835.

The spelling of 55487294 in words is "fifty-five million, four hundred eighty-seven thousand, two hundred ninety-four".