2155507202 has 4 divisors (see below), whose sum is σ = 3233260806. Its totient is φ = 1077753600.

The previous prime is 2155507201. The next prime is 2155507213. The reversal of 2155507202 is 2027055512.

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

It can be written as a sum of positive squares in only one way, i.e., 2030313481 + 125193721 = 45059^2 + 11189^2 .

It is a super-2 number, since 2×2155507202² = 9292422595747737608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2155507201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538876799 + ... + 538876802.

Almost surely, 2^2155507202 is an apocalyptic number.

2155507202 is a deficient number, since it is larger than the sum of its proper divisors (1077753604).

2155507202 is a wasteful number, since it uses less digits than its factorization.

2155507202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077753603.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 2155507202 is about 46427.4401835811. The cubic root of 2155507202 is about 1291.7639474721.

The spelling of 2155507202 in words is "two billion, one hundred fifty-five million, five hundred seven thousand, two hundred two".