51617084 has 6 divisors (see below), whose sum is σ = 90329904. Its totient is φ = 25808540.

The previous prime is 51617057. The next prime is 51617087. The reversal of 51617084 is 48071615.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51617084.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51617087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6452132 + ... + 6452139.

It is an arithmetic number, because the mean of its divisors is an integer number (15054984).

Almost surely, 2^51617084 is an apocalyptic number.

It is an amenable number.

51617084 is a deficient number, since it is larger than the sum of its proper divisors (38712820).

51617084 is a wasteful number, since it uses less digits than its factorization.

51617084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12904275 (or 12904273 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 51617084 is about 7184.5030447485. The cubic root of 51617084 is about 372.3326792340.

Adding to 51617084 its reverse (48071615), we get a palindrome (99688699).

The spelling of 51617084 in words is "fifty-one million, six hundred seventeen thousand, eighty-four".