51202923 has 4 divisors (see below), whose sum is σ = 68270568. Its totient is φ = 34135280.

The previous prime is 51202919. The next prime is 51202927. The reversal of 51202923 is 32920215.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (51202919) and next prime (51202927).

It is a cyclic number.

It is not a de Polignac number, because 51202923 - 2² = 51202919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51202893 and 51202902.

It is not an unprimeable number, because it can be changed into a prime (51202927) 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, 8533818 + ... + 8533823.

It is an arithmetic number, because the mean of its divisors is an integer number (17067642).

Almost surely, 2^51202923 is an apocalyptic number.

51202923 is a deficient number, since it is larger than the sum of its proper divisors (17067645).

51202923 is a wasteful number, since it uses less digits than its factorization.

51202923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17067644.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 51202923 is about 7155.6217759186. The cubic root of 51202923 is about 371.3341728901.

It can be divided in two parts, 51202 and 923, that added together give a palindrome (52125).

The spelling of 51202923 in words is "fifty-one million, two hundred two thousand, nine hundred twenty-three".