51212034 has 32 divisors (see below), whose sum is σ = 116585280. Its totient is φ = 16653600.

The previous prime is 51212027. The next prime is 51212039. The reversal of 51212034 is 43021215.

51212034 is a `hidden beast` number, since 512 + 120 + 34 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 51211998 and 51212016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51212039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9352 + ... + 13779.

It is an arithmetic number, because the mean of its divisors is an integer number (3643290).

Almost surely, 2^51212034 is an apocalyptic number.

51212034 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

51212034 is an abundant number, since it is smaller than the sum of its proper divisors (65373246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51212034 is a wasteful number, since it uses less digits than its factorization.

51212034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23183 (or 23177 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 51212034 is about 7156.2583799078. The cubic root of 51212034 is about 371.3561965351.

Adding to 51212034 its reverse (43021215), we get a palindrome (94233249).

The spelling of 51212034 in words is "fifty-one million, two hundred twelve thousand, thirty-four".