52472278 has 4 divisors (see below), whose sum is σ = 78708420. Its totient is φ = 26236138.

The previous prime is 52472267. The next prime is 52472297. The reversal of 52472278 is 87227425.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13118068 + ... + 13118071.

It is an arithmetic number, because the mean of its divisors is an integer number (19677105).

Almost surely, 2^52472278 is an apocalyptic number.

52472278 is a deficient number, since it is larger than the sum of its proper divisors (26236142).

52472278 is a wasteful number, since it uses less digits than its factorization.

52472278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26236141.

The product of its digits is 62720, while the sum is 37.

The square root of 52472278 is about 7243.7751207502. The cubic root of 52472278 is about 374.3777009252.

It can be divided in two parts, 524722 and 78, that added together give a triangular number (524800 = T₁₀₂₄).

The spelling of 52472278 in words is "fifty-two million, four hundred seventy-two thousand, two hundred seventy-eight".