55772254 has 8 divisors (see below), whose sum is σ = 84121128. Its totient is φ = 27731880.

The previous prime is 55772251. The next prime is 55772267. The reversal of 55772254 is 45227755.

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

It is a super-2 number, since 2×55772254² = 6221088632481032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55772251) 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, 76672 + ... + 77395.

It is an arithmetic number, because the mean of its divisors is an integer number (10515141).

Almost surely, 2^55772254 is an apocalyptic number.

55772254 is a deficient number, since it is larger than the sum of its proper divisors (28348874).

55772254 is a wasteful number, since it uses less digits than its factorization.

55772254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154250.

The product of its digits is 98000, while the sum is 37.

The square root of 55772254 is about 7468.0823509118. The cubic root of 55772254 is about 382.0668861251.

The spelling of 55772254 in words is "fifty-five million, seven hundred seventy-two thousand, two hundred fifty-four".