42772250 has 32 divisors (see below), whose sum is σ = 82667520. Its totient is φ = 16554000.

The previous prime is 42772241. The next prime is 42772271. The reversal of 42772250 is 5227724.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4991 + ... + 10509.

It is an arithmetic number, because the mean of its divisors is an integer number (2583360).

Almost surely, 2^42772250 is an apocalyptic number.

42772250 is a deficient number, since it is larger than the sum of its proper divisors (39895270).

42772250 is a wasteful number, since it uses less digits than its factorization.

42772250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5567 (or 5557 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 42772250 is about 6540.0496940008. The cubic root of 42772250 is about 349.7201845180.

Adding to 42772250 its reverse (5227724), we get a palindrome (47999974).

It can be divided in two parts, 42772 and 250, that multiplied together give a triangular number (10693000 = T₄₆₂₄).

The spelling of 42772250 in words is "forty-two million, seven hundred seventy-two thousand, two hundred fifty".