51245546 has 16 divisors (see below), whose sum is σ = 88270560. Its totient is φ = 22067280.

The previous prime is 51245539. The next prime is 51245561. The reversal of 51245546 is 64554215.

It is a super-2 number, since 2×51245546² = 5252211969676232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60881 + ... + 61716.

It is an arithmetic number, because the mean of its divisors is an integer number (5516910).

Almost surely, 2^51245546 is an apocalyptic number.

51245546 is a deficient number, since it is larger than the sum of its proper divisors (37025014).

51245546 is a wasteful number, since it uses less digits than its factorization.

51245546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122629.

The product of its digits is 24000, while the sum is 32.

The square root of 51245546 is about 7158.5994440253. The cubic root of 51245546 is about 371.4371812459.

The spelling of 51245546 in words is "fifty-one million, two hundred forty-five thousand, five hundred forty-six".