51626245 has 8 divisors (see below), whose sum is σ = 67583520. Its totient is φ = 37546320.

The previous prime is 51626233. The next prime is 51626261. The reversal of 51626245 is 54262615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51626245 - 2⁷ = 51626117 is a prime.

It is a congruent number.

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, 469275 + ... + 469384.

It is an arithmetic number, because the mean of its divisors is an integer number (8447940).

Almost surely, 2^51626245 is an apocalyptic number.

51626245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51626245 is a deficient number, since it is larger than the sum of its proper divisors (15957275).

51626245 is a wasteful number, since it uses less digits than its factorization.

51626245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938675.

The product of its digits is 14400, while the sum is 31.

The square root of 51626245 is about 7185.1405692582. The cubic root of 51626245 is about 372.3547051321.

The spelling of 51626245 in words is "fifty-one million, six hundred twenty-six thousand, two hundred forty-five".