51030942 has 32 divisors (see below), whose sum is σ = 104087808. Its totient is φ = 16675776.

The previous prime is 51030901. The next prime is 51030949. The reversal of 51030942 is 24903015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51030949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114973 + ... + 115415.

It is an arithmetic number, because the mean of its divisors is an integer number (3252744).

Almost surely, 2^51030942 is an apocalyptic number.

51030942 is an abundant number, since it is smaller than the sum of its proper divisors (53056866).

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

51030942 is a wasteful number, since it uses less digits than its factorization.

51030942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784.

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

The square root of 51030942 is about 7143.5944733726. The cubic root of 51030942 is about 370.9179593031.

Adding to 51030942 its reverse (24903015), we get a palindrome (75933957).

The spelling of 51030942 in words is "fifty-one million, thirty thousand, nine hundred forty-two".