51025383 has 24 divisors (see below), whose sum is σ = 77750400. Its totient is φ = 33430968.

The previous prime is 51025367. The next prime is 51025399. The reversal of 51025383 is 38352015.

It is an interprime number because it is at equal distance from previous prime (51025367) and next prime (51025399).

It is not a de Polignac number, because 51025383 - 2⁴ = 51025367 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12558 + ... + 16116.

It is an arithmetic number, because the mean of its divisors is an integer number (3239600).

Almost surely, 2^51025383 is an apocalyptic number.

51025383 is a deficient number, since it is larger than the sum of its proper divisors (26725017).

51025383 is an equidigital number, since it uses as much as digits as its factorization.

51025383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633 (or 3621 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 51025383 is about 7143.2053729401. The cubic root of 51025383 is about 370.9044902996.

Adding to 51025383 its reverse (38352015), we get a palindrome (89377398).

The spelling of 51025383 in words is "fifty-one million, twenty-five thousand, three hundred eighty-three".