2505690770 has 32 divisors (see below), whose sum is σ = 5089936320. Its totient is φ = 879739840.

The previous prime is 2505690767. The next prime is 2505690787. The reversal of 2505690770 is 770965052.

2505690770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389552 + ... + 395931.

It is an arithmetic number, because the mean of its divisors is an integer number (159060510).

Almost surely, 2^2505690770 is an apocalyptic number.

2505690770 is an abundant number, since it is smaller than the sum of its proper divisors (2584245550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2505690770 is a wasteful number, since it uses less digits than its factorization.

2505690770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785530.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 2505690770 is about 50056.8753519434. The cubic root of 2505690770 is about 1358.2378363197.

The spelling of 2505690770 in words is "two billion, five hundred five million, six hundred ninety thousand, seven hundred seventy".