51113750 has 40 divisors (see below), whose sum is σ = 96981456. Its totient is φ = 20196000.

The previous prime is 51113737. The next prime is 51113759. The reversal of 51113750 is 5731115.

It is a super-2 number, since 2×51113750² = 5225230878125000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51113759) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 128552 + ... + 128948.

Almost surely, 2^51113750 is an apocalyptic number.

51113750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51113750 is a deficient number, since it is larger than the sum of its proper divisors (45867706).

51113750 is a wasteful number, since it uses less digits than its factorization.

51113750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 23.

The square root of 51113750 is about 7149.3880857036. The cubic root of 51113750 is about 371.1184806233.

Adding to 51113750 its reverse (5731115), we get a palindrome (56844865).

The spelling of 51113750 in words is "fifty-one million, one hundred thirteen thousand, seven hundred fifty".