51100340 has 24 divisors (see below), whose sum is σ = 109808160. Its totient is φ = 19964448.

The previous prime is 51100303. The next prime is 51100373. The reversal of 51100340 is 4300115.

It is a super-2 number, since 2×51100340² = 5222489496231200, which contains 22 as substring.

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, 28850 + ... + 30569.

It is an arithmetic number, because the mean of its divisors is an integer number (4575340).

Almost surely, 2^51100340 is an apocalyptic number.

It is an amenable number.

51100340 is an abundant number, since it is smaller than the sum of its proper divisors (58707820).

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

51100340 is a wasteful number, since it uses less digits than its factorization.

51100340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59471 (or 59469 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 51100340 is about 7148.4501816827. The cubic root of 51100340 is about 371.0860227288.

Adding to 51100340 its reverse (4300115), we get a palindrome (55400455).

The spelling of 51100340 in words is "fifty-one million, one hundred thousand, three hundred forty".