51554011 has 4 divisors (see below), whose sum is σ = 54267400. Its totient is φ = 48840624.

The previous prime is 51554003. The next prime is 51554029. The reversal of 51554011 is 11045515.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51554011 - 2³ = 51554003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51554311) 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, 1356666 + ... + 1356703.

It is an arithmetic number, because the mean of its divisors is an integer number (13566850).

Almost surely, 2^51554011 is an apocalyptic number.

51554011 is a deficient number, since it is larger than the sum of its proper divisors (2713389).

51554011 is a wasteful number, since it uses less digits than its factorization.

51554011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713388.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 51554011 is about 7180.1121857531. The cubic root of 51554011 is about 372.1809613068.

Adding to 51554011 its reverse (11045515), we get a palindrome (62599526).

The spelling of 51554011 in words is "fifty-one million, five hundred fifty-four thousand, eleven".