51626004 has 12 divisors (see below), whose sum is σ = 120460704. Its totient is φ = 17208664.

The previous prime is 51625999. The next prime is 51626009. The reversal of 51626004 is 40062615.

It is an interprime number because it is at equal distance from previous prime (51625999) and next prime (51626009).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51626009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2151072 + ... + 2151095.

It is an arithmetic number, because the mean of its divisors is an integer number (10038392).

Almost surely, 2^51626004 is an apocalyptic number.

It is an amenable number.

51626004 is an abundant number, since it is smaller than the sum of its proper divisors (68834700).

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

51626004 is a wasteful number, since it uses less digits than its factorization.

51626004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302174 (or 4302172 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 51626004 is about 7185.1237985159. The cubic root of 51626004 is about 372.3541257264.

Adding to 51626004 its reverse (40062615), we get a palindrome (91688619).

The spelling of 51626004 in words is "fifty-one million, six hundred twenty-six thousand, four".