55515294 has 24 divisors (see below), whose sum is σ = 124739160. Its totient is φ = 18504936.

The previous prime is 55515293. The next prime is 55515373. The reversal of 55515294 is 49251555.

55515294 is a `hidden beast` number, since 55 + 515 + 2 + 94 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55515293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56629 + ... + 57600.

It is an arithmetic number, because the mean of its divisors is an integer number (5197465).

Almost surely, 2^55515294 is an apocalyptic number.

55515294 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

55515294 is an abundant number, since it is smaller than the sum of its proper divisors (69223866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55515294 is a wasteful number, since it uses less digits than its factorization.

55515294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114246 (or 114234 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The square root of 55515294 is about 7450.8586082411. The cubic root of 55515294 is about 381.4792159564.

The spelling of 55515294 in words is "fifty-five million, five hundred fifteen thousand, two hundred ninety-four".