215430054 has 32 divisors (see below), whose sum is σ = 501707520. Its totient is φ = 60389472.

The previous prime is 215430053. The next prime is 215430073. The reversal of 215430054 is 450034512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215430053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46164 + ... + 50615.

It is an arithmetic number, because the mean of its divisors is an integer number (15678360).

Almost surely, 2^215430054 is an apocalyptic number.

215430054 is an abundant number, since it is smaller than the sum of its proper divisors (286277466).

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

215430054 is a wasteful number, since it uses less digits than its factorization.

215430054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96844.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 215430054 is about 14677.5356923429. The cubic root of 215430054 is about 599.4718073796.

Adding to 215430054 its reverse (450034512), we get a palindrome (665464566).

The spelling of 215430054 in words is "two hundred fifteen million, four hundred thirty thousand, fifty-four".