1025384655 has 16 divisors (see below), whose sum is σ = 1641178080. Its totient is φ = 546684288.

The previous prime is 1025384641. The next prime is 1025384671. The reversal of 1025384655 is 5564835201.

It is not a de Polignac number, because 1025384655 - 2⁷ = 1025384527 is a prime.

It is a congruent 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, 41181 + ... + 61209.

It is an arithmetic number, because the mean of its divisors is an integer number (102573630).

Almost surely, 2^1025384655 is an apocalyptic number.

1025384655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025384655 is a deficient number, since it is larger than the sum of its proper divisors (615793425).

1025384655 is a wasteful number, since it uses less digits than its factorization.

1025384655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23450.

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 1025384655 is about 32021.6279255131. The cubic root of 1025384655 is about 1008.3909467494.

The spelling of 1025384655 in words is "one billion, twenty-five million, three hundred eighty-four thousand, six hundred fifty-five".