1025537945 has 32 divisors (see below), whose sum is σ = 1274724000. Its totient is φ = 791783424.

The previous prime is 1025537923. The next prime is 1025537951. The reversal of 1025537945 is 5497355201.

It can be written as a sum of positive squares in 16 ways, for example, as 93334921 + 932203024 = 9661^2 + 30532^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025537945 - 2²⁶ = 958429081 is a prime.

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, 5927879 + ... + 5928051.

It is an arithmetic number, because the mean of its divisors is an integer number (39835125).

Almost surely, 2^1025537945 is an apocalyptic number.

It is an amenable number.

1025537945 is a deficient number, since it is larger than the sum of its proper divisors (249186055).

1025537945 is a wasteful number, since it uses less digits than its factorization.

1025537945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 1025537945 is about 32024.0213745869. The cubic root of 1025537945 is about 1008.4411940868.

The spelling of 1025537945 in words is "one billion, twenty-five million, five hundred thirty-seven thousand, nine hundred forty-five".