515344054 has 4 divisors (see below), whose sum is σ = 773016084. Its totient is φ = 257672026.

The previous prime is 515344051. The next prime is 515344061. The reversal of 515344054 is 450443515.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515344051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128836012 + ... + 128836015.

It is an arithmetic number, because the mean of its divisors is an integer number (193254021).

Almost surely, 2^515344054 is an apocalyptic number.

515344054 is a deficient number, since it is larger than the sum of its proper divisors (257672030).

515344054 is a wasteful number, since it uses less digits than its factorization.

515344054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257672029.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 515344054 is about 22701.1905855178. The cubic root of 515344054 is about 801.7379166150.

Adding to 515344054 its reverse (450443515), we get a palindrome (965787569).

It can be divided in two parts, 515 and 344054, that added together give a square (344569 = 587²).

The spelling of 515344054 in words is "five hundred fifteen million, three hundred forty-four thousand, fifty-four".