55123274 has 4 divisors (see below), whose sum is σ = 82684914. Its totient is φ = 27561636.

The previous prime is 55123273. The next prime is 55123283. The reversal of 55123274 is 47232155.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51222649 + 3900625 = 7157^2 + 1975^2 .

It is not an unprimeable number, because it can be changed into a prime (55123273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13780817 + ... + 13780820.

Almost surely, 2^55123274 is an apocalyptic number.

55123274 is a deficient number, since it is larger than the sum of its proper divisors (27561640).

55123274 is a wasteful number, since it uses less digits than its factorization.

55123274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27561639.

The product of its digits is 8400, while the sum is 29.

The square root of 55123274 is about 7424.5049666628. The cubic root of 55123274 is about 380.5791584069.

The spelling of 55123274 in words is "fifty-five million, one hundred twenty-three thousand, two hundred seventy-four".