1025397015 has 16 divisors (see below), whose sum is σ = 1644300000. Its totient is φ = 545656832.

The previous prime is 1025397001. The next prime is 1025397029. The reversal of 1025397015 is 5107935201.

It is an interprime number because it is at equal distance from previous prime (1025397001) and next prime (1025397029).

It is a cyclic number.

It is not a de Polignac number, because 1025397015 - 2⁷ = 1025396887 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, 69390 + ... + 82859.

It is an arithmetic number, because the mean of its divisors is an integer number (102768750).

Almost surely, 2^1025397015 is an apocalyptic number.

1025397015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025397015 is a deficient number, since it is larger than the sum of its proper divisors (618902985).

1025397015 is a wasteful number, since it uses less digits than its factorization.

1025397015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152706.

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 1025397015 is about 32021.8209194918. The cubic root of 1025397015 is about 1008.3949984524.

The spelling of 1025397015 in words is "one billion, twenty-five million, three hundred ninety-seven thousand, fifteen".