2007213557 has 4 divisors (see below), whose sum is σ = 2007304416. Its totient is φ = 2007122700.

The previous prime is 2007213541. The next prime is 2007213583. The reversal of 2007213557 is 7553127002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2007213557 - 2⁴ = 2007213541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2007213517) 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, 11432 + ... + 64382.

It is an arithmetic number, because the mean of its divisors is an integer number (501826104).

Almost surely, 2^2007213557 is an apocalyptic number.

It is an amenable number.

2007213557 is a deficient number, since it is larger than the sum of its proper divisors (90859).

2007213557 is an equidigital number, since it uses as much as digits as its factorization.

2007213557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90858.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 2007213557 is about 44801.9369782156. The cubic root of 2007213557 is about 1261.4339844617.

The spelling of 2007213557 in words is "two billion, seven million, two hundred thirteen thousand, five hundred fifty-seven".