51121324 has 24 divisors (see below), whose sum is σ = 96367040. Its totient is φ = 23650704.

The previous prime is 51121307. The next prime is 51121337. The reversal of 51121324 is 42312115.

It is a super-2 number, since 2×51121324² = 5226779535025952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 4554 + ... + 11089.

Almost surely, 2^51121324 is an apocalyptic number.

It is an amenable number.

51121324 is a deficient number, since it is larger than the sum of its proper divisors (45245716).

51121324 is a wasteful number, since it uses less digits than its factorization.

51121324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15709 (or 15707 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 51121324 is about 7149.9177617648. The cubic root of 51121324 is about 371.1368104109.

Adding to 51121324 its reverse (42312115), we get a palindrome (93433439).

The spelling of 51121324 in words is "fifty-one million, one hundred twenty-one thousand, three hundred twenty-four".