1025115534 has 64 divisors (see below), whose sum is σ = 2330265600. Its totient is φ = 333961056.

The previous prime is 1025115503. The next prime is 1025115563. The reversal of 1025115534 is 4355115201.

1025115534 is a `hidden beast` number, since 10 + 2 + 5 + 115 + 534 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1025115498 and 1025115507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 438232 + ... + 440564.

It is an arithmetic number, because the mean of its divisors is an integer number (36410400).

Almost surely, 2^1025115534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025115534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1165132800).

1025115534 is an abundant number, since it is smaller than the sum of its proper divisors (1305150066).

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

1025115534 is a wasteful number, since it uses less digits than its factorization.

1025115534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526 (or 2520 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1025115534 is about 32017.4254742632. The cubic root of 1025115534 is about 1008.3027187451.

The spelling of 1025115534 in words is "one billion, twenty-five million, one hundred fifteen thousand, five hundred thirty-four".