2155658425 has 12 divisors (see below), whose sum is σ = 2677167936. Its totient is φ = 1721848400.

The previous prime is 2155658423. The next prime is 2155658437. The reversal of 2155658425 is 5248565512.

2155658425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2155658425 - 2¹ = 2155658423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155658423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50461 + ... + 82810.

It is an arithmetic number, because the mean of its divisors is an integer number (223097328).

Almost surely, 2^2155658425 is an apocalyptic number.

2155658425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2155658425 is a deficient number, since it is larger than the sum of its proper divisors (521509511).

2155658425 is a wasteful number, since it uses less digits than its factorization.

2155658425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133928 (or 133923 counting only the distinct ones).

The product of its digits is 480000, while the sum is 43.

The square root of 2155658425 is about 46429.0687500837. The cubic root of 2155658425 is about 1291.7941553433.

The spelling of 2155658425 in words is "two billion, one hundred fifty-five million, six hundred fifty-eight thousand, four hundred twenty-five".