2101502054 has 4 divisors (see below), whose sum is σ = 3152253084. Its totient is φ = 1050751026.

The previous prime is 2101502041. The next prime is 2101502069. The reversal of 2101502054 is 4502051012.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525375512 + ... + 525375515.

It is an arithmetic number, because the mean of its divisors is an integer number (788063271).

Almost surely, 2^2101502054 is an apocalyptic number.

2101502054 is a deficient number, since it is larger than the sum of its proper divisors (1050751030).

2101502054 is a wasteful number, since it uses less digits than its factorization.

2101502054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050751029.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2101502054 is about 45842.1427727806. The cubic root of 2101502054 is about 1280.8844095329.

Adding to 2101502054 its reverse (4502051012), we get a palindrome (6603553066).

The spelling of 2101502054 in words is "two billion, one hundred one million, five hundred two thousand, fifty-four".