1025616087 has 40 divisors (see below), whose sum is σ = 1566069120. Its totient is φ = 668742480.

The previous prime is 1025616077. The next prime is 1025616133. The reversal of 1025616087 is 7806165201.

1025616087 is a `hidden beast` number, since 10 + 2 + 561 + 6 + 0 + 87 = 666.

It is not a de Polignac number, because 1025616087 - 2⁴ = 1025616071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025616037) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 798748 + ... + 800030.

It is an arithmetic number, because the mean of its divisors is an integer number (39151728).

Almost surely, 2^1025616087 is an apocalyptic number.

1025616087 is a deficient number, since it is larger than the sum of its proper divisors (540453033).

1025616087 is a wasteful number, since it uses less digits than its factorization.

1025616087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505 (or 1496 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1025616087 is about 32025.2414042424. The cubic root of 1025616087 is about 1008.4668065343.

The spelling of 1025616087 in words is "one billion, twenty-five million, six hundred sixteen thousand, eighty-seven".