1525051 has 4 divisors (see below), whose sum is σ = 1663704. Its totient is φ = 1386400.

The previous prime is 1525049. The next prime is 1525057. The reversal of 1525051 is 1505251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1505251 = 11 ⋅136841.

It is a cyclic number.

It is not a de Polignac number, because 1525051 - 2¹ = 1525049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1525057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69310 + ... + 69331.

It is an arithmetic number, because the mean of its divisors is an integer number (415926).

2^1525051 is an apocalyptic number.

1525051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1525051 is a deficient number, since it is larger than the sum of its proper divisors (138653).

1525051 is a wasteful number, since it uses less digits than its factorization.

1525051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138652.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 1525051 is about 1234.9295526466. The cubic root of 1525051 is about 115.1051590090.

The spelling of 1525051 in words is "one million, five hundred twenty-five thousand, fifty-one".