2151513550 has 48 divisors (see below), whose sum is σ = 4065489792. Its totient is φ = 846994400.

The previous prime is 2151513527. The next prime is 2151513577. The reversal of 2151513550 is 553151512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1289817 + ... + 1291483.

It is an arithmetic number, because the mean of its divisors is an integer number (84697704).

Almost surely, 2^2151513550 is an apocalyptic number.

2151513550 is a deficient number, since it is larger than the sum of its proper divisors (1913976242).

2151513550 is a wasteful number, since it uses less digits than its factorization.

2151513550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073 (or 2068 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 2151513550 is about 46384.4106354711. The cubic root of 2151513550 is about 1290.9656751826.

The spelling of 2151513550 in words is "two billion, one hundred fifty-one million, five hundred thirteen thousand, five hundred fifty".