55813374 has 40 divisors (see below), whose sum is σ = 131652840. Its totient is φ = 17624304.

The previous prime is 55813369. The next prime is 55813379. The reversal of 55813374 is 47331855.

55813374 is a `hidden beast` number, since 5 + 581 + 3 + 3 + 74 = 666.

It is an interprime number because it is at equal distance from previous prime (55813369) and next prime (55813379).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55813379) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5989 + ... + 12144.

It is an arithmetic number, because the mean of its divisors is an integer number (3291321).

Almost surely, 2^55813374 is an apocalyptic number.

55813374 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

55813374 is an abundant number, since it is smaller than the sum of its proper divisors (75839466).

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

55813374 is a wasteful number, since it uses less digits than its factorization.

55813374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18166 (or 18157 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 55813374 is about 7470.8348931026. The cubic root of 55813374 is about 382.1607603473.

The spelling of 55813374 in words is "fifty-five million, eight hundred thirteen thousand, three hundred seventy-four".