1525529952 has 144 divisors (see below), whose sum is σ = 4680879840. Its totient is φ = 469487616.

The previous prime is 1525529939. The next prime is 1525529959. The reversal of 1525529952 is 2599255251.

1525529952 is a `hidden beast` number, since 1 + 5 + 2 + 552 + 9 + 95 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 1525529898 and 1525529907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525529959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256549 + ... + 262427.

It is an arithmetic number, because the mean of its divisors is an integer number (32506110).

Almost surely, 2^1525529952 is an apocalyptic number.

1525529952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1525529952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2340439920).

1525529952 is an abundant number, since it is smaller than the sum of its proper divisors (3155349888).

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

1525529952 is a wasteful number, since it uses less digits than its factorization.

1525529952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5965 (or 5954 counting only the distinct ones).

The product of its digits is 405000, while the sum is 45.

The square root of 1525529952 is about 39058.0331302025. The cubic root of 1525529952 is about 1151.1720758442.

The spelling of 1525529952 in words is "one billion, five hundred twenty-five million, five hundred twenty-nine thousand, nine hundred fifty-two".