51100534 has 4 divisors (see below), whose sum is σ = 76650804. Its totient is φ = 25550266.

The previous prime is 51100531. The next prime is 51100547. The reversal of 51100534 is 43500115.

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

It is a super-2 number, since 2×51100534² = 5222529150170312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12775132 + ... + 12775135.

It is an arithmetic number, because the mean of its divisors is an integer number (19162701).

Almost surely, 2^51100534 is an apocalyptic number.

51100534 is a deficient number, since it is larger than the sum of its proper divisors (25550270).

51100534 is a wasteful number, since it uses less digits than its factorization.

51100534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25550269.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 51100534 is about 7148.4637510447. The cubic root of 51100534 is about 371.0864923317.

Adding to 51100534 its reverse (43500115), we get a palindrome (94600649).

The spelling of 51100534 in words is "fifty-one million, one hundred thousand, five hundred thirty-four".