20270552507 has 4 divisors (see below), whose sum is σ = 20416383960. Its totient is φ = 20124721056.

The previous prime is 20270552503. The next prime is 20270552509. The reversal of 20270552507 is 70525507202.

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

It is a cyclic number.

It is not a de Polignac number, because 20270552507 - 2² = 20270552503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20270552503) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 72915518 + ... + 72915795.

It is an arithmetic number, because the mean of its divisors is an integer number (5104095990).

Almost surely, 2^20270552507 is an apocalyptic number.

20270552507 is a deficient number, since it is larger than the sum of its proper divisors (145831453).

20270552507 is a wasteful number, since it uses less digits than its factorization.

20270552507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145831452.

The product of its (nonzero) digits is 49000, while the sum is 35.

The spelling of 20270552507 in words is "twenty billion, two hundred seventy million, five hundred fifty-two thousand, five hundred seven".